Panasonic Cordless Drill & Driver EY74A2 Operating Instructions

							- 11 -
[Main unit]
CAUTION 
• When storing or carrying the tool, set 
the Forward/Reverse lever to the 
center position (switch lock).
NOTE:
Exercise caution to ensure no objects 
come into contact with the tool’s 
trigger switch. 
If an object comes into contact with 
the tool’s trigger switch, even while 
the Forward/Reverse lever is in the 
center position (locked), a small 
amount of electric current may 
continue flowing, which may cause an 
excessive discharge from the battery 
pack and subsequent battery pack 
failure.
Switch and Forward/Reverse Lever 
Operation [Fig.5]
1.  Push the lever for forward or reverse 
rotation. Check the direction of the 
lever before using.
2.  Depress the trigger switch slightly to 
start the tool slowly.
3.  Speed will increase by pressing the 
trigger. The tool stops working immedi -
ately by releasing the trigger.
4.  When done with an application, lock the 
switch by centering the lever.
NOTE: When the brake operates, a braking 
sound may be heard. This is normal.
CAUTION: When operating the tool by pulling the 
trigger, there may be a momentary lag 
before rotation starts. This does not 
signal a malfunction.
* This lag occurs as the tool’s circuitry 
starts up when the trigger is pulled for 
the first time after installing a battery 
pack or after the tool has not been 
used for at least 1 minute (or at least 
5 minutes when the LED is on). 
Rotation will start without any lag 
during second and subsequent opera -
tions.
 CAUTION:
To prevent damage, do not operate 
Forward/Reverse lever until the bit 
comes to a complete stop.
Clutch Torque Setting
Adjust the torque to one of the 18 clutch 
settings or “” position.
 CAUTION:
 
• Set the clutch setting at this mark 
[Fig.6] before actual operation.
 
• If the clutch handle cannot be set at 
“drilling” mode after driving with clutch 
function, set the clutch handle at 
position 1 and operate the clutch for a 
second.
Speed SelectionChoose a low or high speed to suit the 
use. [Fig.7]
The more the variable speed control 
trigger is pulled, the higher the speed 
becomes.
 CAUTION:
 
• Check the speed selector switch 
before use.
 
• Use at low speed when high torque is 
needed during operation. (Using at 
high speed when high torque is 
required may cause a motor break -
down.)
 
• To prevent excessive temperature 
increase of the tool surface, do not 
operate the tool continuously using 
two or more battery packs. The tool 
needs cool-off time before switching 
to another pack.
 
• Do not close up vent holes on the 
sides of the body during operation.  
Otherwise, the machine function is 
adversely affected to cause a failure.
 
• Do NOT strain the tool (motor). This 
may cause damage to the unit.
 
• Use the tool in such a way as to 
prevent the air from the body vent 
holes from blowing directly onto your 
skin. Otherwise, you may get burned.
EN  
						

							- 12 -
Speed Control FunctionSetting the maximum speed.
1. Press the speed setting button and select a speed.  
The speed changes to H, M, L and OFF (the light is off) in this order.
2.  Select OFF to release it.
Display Low mode High mode
H Approx. 300 min-1 (rpm) Approx. 1000 min-1 (rpm)
M Approx. 200 min-1 (rpm) Approx. 670 min-1 (rpm)
L Approx. 150 min-1 (rpm) Approx. 500 min-1 (rpm)
OFF Ordinary speed
18 V Approx. 470 min
-1 (rpm)
14.4 V  Approx. 400 min-1 (rpm) Ordinary speed
18 V 
Approx. 1580 min
-1 (rpm)
14.4 V  Approx. 1350 min-1 (rpm)
 
• Default setting: OFF
 
• The speed is the same at both 18 V and 14.4 V in this setting.
 
• If a high mode is chosen, the speed is set as the table above.
LED Light
Press the light button and set illumination 
condition.
Illuminated
Illuminates by pressing button.
The light turns off when the tool 
has not been used for more 
than 5 minutes or just after 
attaching the battery pack.
Depress the trigger switch and 
operate the tool once.
Interlocking trigger
Illuminates when depressing the 
trigger switch.
Turns off when the trigger is 
released.
Off
The light illuminates with very low current, 
and it does not adversely affect the perfor-
mance or its battery capacity.
 CAUTION:
 
• The built-in LED light is designed to 
illuminate the small work area tempo -
rarily.
 
• Do not use it as a substitute for a 
regular flashlight, since it does not 
have enough brightness.
CAUTION: DO NOT STARE INTO 
BEAM.
Use of controls or adjustments or perfor -
mance of procedures other than those 
specified herein may result in hazardous 
radiation exposure.
Battery Level Indicator
Press the battery level button. 
Battery level indicator shows battery level 
in three levels while pressing the button. NOTE:The indicator will not show the battery 
level even the button is pressed in the 
following cases.
 
• The main unit is powered off.
 
• Just after attaching the battery pack
 
• The main unit or battery level button is 
not operated for approx. five minutes.  
Press the battery level button again 
after depressing the trigger switch.
 
• If the battery temperature is high, stop 
the operation and wait until the battery 
temperature is low.
EN  
						

							- 13 -
IndicatorBattery status
3 lamps 
illuminatedCharged 
enough
2 lamps 
illuminatedApprox. 60% 
remaining
One lamp 
illuminatedBattery level is 
low.
Need to be 
charged soon
3 lamps 
flashingEmpty
Need to be 
charged imme
-
diately
Battery level indication is just guide.  
The indication may change due to the 
condition of battery or ambient tempera -
ture.
Excessive (complete) discharging of 
lithium ion batteries shortens their service 
life dramatically. The driver includes a 
battery protection feature designed to 
prevent excessive discharging of the 
battery pack.
Bit-locking Function
1.  With the trigger switch not engaged and 
a screwdriver bit locked in place, the 
tool can be used as a manual screw -
driver (up to 22.6 N•m, 230 kgf•cm, 199 
in•lbs).  
There will be a little play in the chuck, 
but this is not a malfunction.
2.  This feature is handy for tightening 
screws that require more torque than 
the maximum torque of the driver 
(position 
 on the clutch), for confirm-
ing the tightness of a screw or to loosen 
an extremely tight screw.
Changing the Belt Hook Location Side 
[Fig.8]
The belt hook can be attached to either 
side of the unit.
1.  Removing the hook
(1)  Remove the nut.
(2)  Draw out the hook.
2.  Attaching the hook to the other side
(1)  Insert the hook in the other side.
(2)  Tighten the nut fully so that it 
securely fastened.
 WARNING!
 
• Be sure to attach the belt hook securely 
to the main unit with the screw firmly 
fastened. When the belt hook is not 
firmly attached to the main unit, the 
hook may disconnect and the main unit 
may fall. 
This may result in an accident or injury.
 
• Periodically check screw for tightness.  
If found to be loose, tighten firmly.
 
• Be sure to attach the belt hook firmly 
and securely onto a waist belt or other 
belt. Pay attention that the unit does 
not slip off the belt. This may result in 
an accident or injury.
 
• When the main unit is held by the belt 
hook, avoid jumping or running with it. 
Doing so may cause the hook to slip 
and the main unit may fall.  
This may result in an accident or injury.
 
• When the unit is hooked onto the waist 
belt by the belt hook, do not attach 
driver bits to the unit. A sharp edge 
object, such as a drill bit, may cause 
injury or an accident.
EN  
						

							- 14 -
Warning Function
(1) Overheat Warning
Off
(normal 
operation)Illuminated:
Overheat 
(motor)Flashing:
Overheat 
(battery)
Indicates operation has been halted due to 
motor or battery overheating.
To protect the motor or battery, be sure to 
note the following when carrying out this 
operation.
 
• If the motor or battery becomes hot, the 
protection function will be activated and 
the motor or battery will stop operating.  
The overheat warning lamp on the 
control panel illuminates or flashes when 
this feature is active.
 
• If the overheating protection feature 
activates, allow the tool to cool thorough -
ly (at least 30 minutes). The tool is ready 
for use when the overheat warning lamp 
goes out.
 
• Avoid using the tool in a way that causes 
the overheating protection feature to 
activate repeatedly.
 
• If the tool is operated continuously under 
high-load conditions or if it is used in 
hot-temperature conditions (such as 
during summer), the overheating protec -
tion feature may activate frequently.
 
• If the tool is used in cold-temperature 
conditions (such as during winter) or if it 
is frequently stopped during use, the 
overheating protection feature may not 
activate. 
The performance of the EY9L42 deterio -
rates significantly at and below 10°C due 
to work conditions and other factors.
(2) Voltage Reduction Warning
One lamp flashing If the tool is subject to a sudden load 
during use that causes the motor to lock 
up, the overdischarge prevention sensor 
may be triggered, and the battery low 
warning lamp may flash. The lamp will 
stop flashing once you address the cause 
of the motor’s locking up and cycle the 
trigger.
(3) Overload Warning
If the tool is subject to a sudden load 
during use that causes the motor to lock 
up, the overcurrent prevention sensor may 
be triggered, the voltage reduction warn
-
ing lamp may illuminate and flash. 
(Bottom of it illuminates and middle and 
top flashes.) 
The lamp will stop illuminating and flash -
ing once you address the cause of the 
motor’s locking up and cycle the trigger.
[Battery Pack]
For Appropriate Use of 
Battery Pack [Fig.9]
 
• The rechargeable batteries have a 
limited life.
 
• For optimum battery life, store the Li-ion 
battery pack following use without 
charging it.
 
• When operating the battery pack, make 
sure the work place is well ventilated.
For safe use
 
• The battery pack is designed to be 
installed by proceeding two steps for 
safety. Make sure the battery pack is 
installed properly to the main unit before 
use.
EN  
						

							- 15 -
 
• If the battery pack is not connected firmly 
when the switch is switched on, the 
overheat warning lamp and the battery 
low warning lamp will flash to indicate 
that safe operation is not possible, and 
the main unit will not rotate normally. 
Connect the battery pack into the unit of 
the tool until the red or yellow label 
disappears.
Battery Recycling  
ATTENTION:  
FOR Li  ion Battery Pack
A Li-ion battery that is recyclable powers 
the product you have purchased. Please 
call 1-800-8-BATTERY for information on 
how to recycle this battery.
[Battery Charger]
Charging
 CAUTION:
1)  If the temperature of the battery pack 
falls approximately below −10°C 
(14°F), charging will automatically 
stop to prevent degradation of the 
battery.
2)  The ambient temperature range is 
between 0°C (32°F) and 40°C 
(104°F). 
If the battery pack is used when the 
battery temperature is below 0°C 
(32°F), the tool may fail to function 
properly.
3)  Use the charger at temperatures 
between 0°C and 40°C, and charge 
the battery at a temperature similar to 
that of the battery itself. (There should 
be no more than a 15°C difference 
between the temperatures of the 
battery and the charging location.)
4)  When charging a cool battery pack 
(below 0°C (32°F)) in a warm place, 
leave the battery pack at the place 
and wait for more than one hour to 
warm up the battery to the level of the 
ambient temperature.
5) Cool down the charger when charging 
more than two battery packs consecu -
tively.
6)  Do not insert your fingers into contact 
hole, when holding charger or any 
other occasions.
7)  Unplug the charger when not in use.
NOTE: Your battery pack is not fully charged at 
the time of purchase. Be sure to charge 
the battery before use.
How to charge
1.  Plug the charger into the AC outlet.
NOTE: Sparks may be produced when the plug 
is inserted into the AC power supply, 
but this is not a problem in terms of 
safety.
2.  Connect the battery pack firmly into the 
charger.
1  Line up the alignment marks and 
place the battery onto the dock on 
the charger.
NOTE: Not all battery packs display the 
alignment mark (Q) (on page 2).
2  Slide forward in the direction of the 
arrow. [Fig.10 
]
3.  During charging, the charging lamp will 
be lit. When charging is completed, an 
internal electronic switch will automati -
cally be triggered to prevent overcharg -
ing.
 
• Charging will not start if the battery 
pack is hot (for example, immediately 
after heavy-duty operation).  
The orange standby lamp will be 
flashing until the battery cools down.  
Charging will then begin automatically.
4.  The charge lamp (green) will flash 
slowly once the battery is approximate -
ly 80% charged.
5.  When charging is completed, the 
charging lamp in green color will turn 
off.
EN  
						

							- 16 -
6. If the temperature of the battery pack is 
0°C or less, charging takes longer to 
fully charge the battery pack than the 
standard charging time.  
Even when the battery is fully charged, 
it will have approximately 50% of the 
power of a fully charged battery at 
normal operating temperature.
7.  Consult an authorized dealer if the 
charging lamp (green) does not turn off. 8. 
If a fully charged battery pack is insert-
ed into the charger again, the charging 
lamp lights up. After several minutes, 
the charging lamp in green color will 
turn off.
9.  Remove the battery pack while the 
battery pack release button is held up. 
[Fig.10 
]
LAMP INDICATIONS
Charging is completed. (Full charge.)
Battery is approximately 80% charged.
Now charging.
Turn off Illuminated Flashing
Charger is plugged into the AC outlet. Ready to charge.
Charging Status Lamp.
Left: green Right: orange will be displayed.
Battery pack is cool.
The battery pack is being charged slowly to reduce the load on 
the battery.
Battery pack is warm.
Charging will begin when temperature of battery pack drops. If 
the temperature of the battery pack is -10° or less, the charging 
status lamp (orange) will also start flashing. Charging will begin 
when the temperature of the battery pack goes up.
Charging is not possible. Clogged with dust or malfunction of 
the battery pack.
(Green) (Orange)
VII. MAINTENANCE
 
• Use only a dry, soft cloth for wiping the unit. 
Do not use a damp cloth, thinner, benzine, or other volatile solvents for cleaning.
 
• In the event that the inside of the tool or battery pack is exposed to water , drain and allow 
to dry as soon as possible.  
Carefully remove any dust or iron filings that collect inside the tool. If you experience any 
problems operating the tool, consult with a repair shop.
VIII.  ACCESSORIESUse only bits suitable for size of drill’s chuck.
EN  
						

							- 17 -
IX. APPENDIX
MAXIMUM RECOMMENDED CAPACITIES
Model No. EY74A2
Motor voltage 14.4 V DC18 V DC
Screw driving Machine screw M5
Wood screw Φ 6.8 mm (17/64″) Φ 8 mm (5/16″)
Drilling Self-drilling screw Φ 6 mm (15/64″)
For Wood Φ 35 mm (1-3/8″)Φ 38 mm (1-1/2″)
For Metal Φ 13 mm (1/2″)
WARRANTY SUPPLEMENT
 
• The breakdown and damage caused by usage consistent for a long time (e.g.: factory 
work on the assembly line, etc.) is out of warranty.
 
• In the event that the inside of the tool or battery pack is exposed to water , drain and allow 
to dry as soon as possible. Carefully remove any dust or iron filings that collect inside the 
tool. If you experience any problems operating the tool, consult with a repair shop.
X.  SPECIFICATIONS
NOTE: Weight indication
Greater than or equal to 1 kg:  indicated by 0.05 kg (0.11 lbs).
Less than 1 kg:  indicated by 0.01 kg (0.02 lbs).
MAIN UNIT
Model No. EY74A2
Motor voltage 14.4 V DC18 V DC
No load 
speed Low
30 – 400 min
-1 (rpm)30 – 470 min-1 (rpm)
High 70 – 1350 min-1 (rpm)70 – 1580 min-1 (rpm)
Chuck capacity Φ 1.5 mm – Φ 13 mm (1/16″–1/2″)
Clutch torque Approx. 0.5 N•m – 4.4 N•m 
(4.3 in-lbs – 39 in-lbs)
Overall length 178 mm (7″)
Weight With battery pack: 
EY9L45 1.90 kg (4.19 lbs)
—
With battery pack: 
EY9L51 —
2.05 kg (4.52 lbs)
EN  
						

							- 18 -
BATTERY PACK
Model No.EY9L45EY9L51
Storage batteryLi-ion battery
Battery voltage14.4 V DC
(3.6 V × 8 cells) 18 V DC
(3.6 V × 10 cells)
NOTE :    This chart may include models that are not available in your area.  
Please refer to the latest general catalogue.
BATTERY CHARGER
Model No.EY0L82
Electrical ratingSee the rating plate on the bottom of charger
Weight0.93 kg (2 lbs)
Charging 
time Model No.EY9L45
EY9L51
Full60 min.70 min.
Federal Communication Commission Interference StatementThis equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reason -
able protection against harmful interference in a residential installation.  This equipment 
generates, uses and can radiate radio frequency energy and, if not installed and used in 
accordance with the instructions, may cause harmful interference to radi\
o communications. 
However, there is no guarantee that interference will not occur in a particular installation. If 
this equipment does cause harmful interference to radio or television reception, which can 
be determined by turning the equipment off and on, the user is encouraged to try to correct 
the interference by one of the following measures:
 
• Reorient or relocate the receiving antenna.
 
• Increase the separation between the equipment and receiver.
 
• Connect the equipment into an outlet on a circuit different from that to which the receiver 
is connected.
 
• Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: To assure continued compliance, install and use in accordance with provided 
instructions. Use only the battery pack specified in the instructions.  Any changes or modifi-
cations not expressly approved by the party responsible for compliance could void the 
user’s authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following 
two conditions: (1) This device may not cause harmful interference, and (2) this device 
must accept any interference received, including interference that may cause undesired 
operation.
This Class B digital apparatus complies with Canadian ICES-003.
XI.  HARMONIZED STANDARDS
BATTERY CHARGERConforms to UL Std.1310
Certified to CSA Std.C22.2 No. 223-M91
EN  
						

							- 19 -
Cet outil, en tant qu'unité complète avec sa 
batterie autonome, répond aux Degrés de 
Protection IP appropriés selon les normes IEC.
Définitions des codes IPIP5X: L’entrée de poussière n’est pas complè-tement empêchée mais la poussière ne doit 
pas pénétrer au point de perturber le fonction-nement satisfaisant de l’outil ou d’en affecter la 
sécurité (Au cas où de la poudre de talc de 
moins de 75 μm s’introduirait à l’intérieur de 
l’outil).
IPX6: L’eau projetée en jets puissants contre 
l’outil de n’importe quelle direction ne doit pas 
avoir d’effets nuisibles (Au cas où approximati
-vement 100 L/min d’eau à température 
normale est projetée sur l’outil a 3 mètre de 
distance pendant 3 minutes avec une lance de 
12,5 mm de diamètre intérieur).
GARANTIE LIMITÉELe code IP56 rend possible un impact mini-mum d’eau et de poussière sur cet outil mais il 
n’en garantit pas les performances dans de 
telles conditions. Veuillez lire la notice d’utilisa
-tion et de sécurité pour plus de détails quant à 
un fonctionnement approprié.
I. USAGE PREVUCes outils peuvent être utilisés pour serrer 
des vis en mode embrayé, et pour percer 
des trous dans du bois et du métal en mode 
perceuse.
II. CONSIGNES DE 
SECU RITE 
GENERALES
   AVERTISSEMENT! Veuillez lire toutes 
les instructions.
Si les instructions détaillées ci-dessous ne 
sont pas observées, cela peut entraîner une 
électrocution, un incendie et/ou des bles
-sures graves. Le terme “outil mécanique” 
utilisé dans tous les avertissements ci-des-sous se réfère aux outils mécaniques opérés 
par cordons d’alimentation et par batterie 
(sans fil).
CONSERVEZ CES INSTRUCTIONS
Sécurité de la zone de travail
1)  Gardez la zone de travail propre et bien 
aérée. Les endroits encombrés et sombres 
invitent les accidents.
2)  Ne faites pas fonctionner les outils 
mécaniques dans des atmosphères 
explosives, comme en présence de 
liquides inflammables, de gaz ou de 
poussière.
 Les outils mécaniques génèrent des 
étincelles qui peuvent enflammer la 
poussière ou les vapeurs.
3)  Gardez les enfants et les spectateurs 
éloignés lors du fonctionnement d’un 
outil mécanique.
 Les distractions peuvent en faire perdre le 
contrôle.
Sécurité électrique
1) La fiche des outils mécaniques doit 
correspondre aux prises secteur. Ne 
modifiez la fiche sous aucun prétexte. 
N’utilisez pas de fiche adaptatrice avec 
les outils mécaniques mis à la terre.
 Des fiches non modifiées et des prises 
secteur correspondant réduisent les 
risques d’électrocution.
2)  Evitez tout contact physique avec les 
surfaces mises à la terre telles que 
tuyaux, radiateurs, micro-ondes et 
réfrigérateurs.
 Il y a un risque d’électrocution supplémen-taire si votre corps est mis à la terre.
3)  N’exposez pas les outils mécaniques à 
la pluie ou à des conditions humides.
 De l’eau pénétrant dans un outil méca-nique augmente le risque d’électrocution.
4)  Ne malmenez pas le cordon. N’utilisez 
jamais le cordon pour transporter, pour 
tirer ou pour débrancher l’outil méca
-nique. Gardez le cordon éloigné de la 
chaleur, de l’huile, d’objets aux bords 
coupants ou de pièces en mouvement.
 Les cordons endommagés on emmêlés 
augmentent le risque d’électrocution.
FR  
						

							- 20 -
5) Lors du fonctionnement des outils 
mécaniques à l’extérieur, utilisez une 
rallonge adaptée à l’utilisation à l’exté
-rieur. L’utilisation d’un cordon adapté à l’utilisa-tion à l’extérieur réduit les risques d’élec-trocution.
Sécurité personnelle
1) Restez alerte, regardez ce que vous 
faites et faites preuve de bon sens 
lorsque vous utilisez un outil méca
-nique. N’utilisez pas un outil méca-nique alors que vous êtes fatigué ou 
sous les effets de drogue, d’alcool ou 
de médicaments.
 Un moment d’inattention pendant que 
vous faites fonctionner l’outil mécanique 
peut entraîner des blessures graves.
2)  Utilisez des équipements de sécurité. 
Portez toujours des protection pour 
vos yeux.
 Des équipements de sécurité comme 
masque antipoussière, chaussures de 
sécurité non glissantes, casque de protec
-tion ou protections d’oreilles, utilisés dans 
des conditions appropriées réduisent les 
blessures corporelles.
3)  Evitez tout démarrage accidentel. Assu
-rez-vous que l’interrupteur est en 
position d’arrêt avant de brancher 
l’outil.
 Le transport d’outils mécaniques avec le 
doigt sur l’interrupteur ou le branchement 
d’outils mécaniques dont l’interrupteur est 
sur la position de marche invite les acci
-dents.
4)  Retirez toute clé d’ajustement ou clé de 
serrage avant de mettre l’outil méca
-nique en marche. Une clé de serrage ou une clé d’ajuste-ment laissée attachée à une pièce tour-nante de l’outil mécanique peut entraîner 
des blessures corporelles.
5)  Ne vous mettez pas en déséquilibre. 
Gardez une bonne prise au sol et votre 
équilibre à tout moment.
 Ceci permet un meilleur contrôle de l’outil 
mécanique dans des situations inatten-dues. 6) 
Habillez-vous correctement. Ne portez 
pas de vêtements lâches ou de bijoux. 
Gardez vos cheveux, vêtements et 
gants éloignés des pièces en mouve
-ment. Des vêtements lâches, des bijoux ou des 
cheveux longs peuvent se faire prendre 
dans les pièces en mouvement.
7)  Si des disposi t i fs pour l a connexion 
d’appareils d’extraction et de ramas
-sage de la poussière sont fournis, 
assurez-vous qu’ils sont connectés et 
correctement utilisés.
 L’utilisation de ces dispositifs peut réduire 
les risques concernés.
Utilisation et soins de l’outil 
mécanique
1) Ne forcez pas l’outil mécanique. Utili-sez l’outil mécanique correct pour 
votre application. L’outil mécanique correct exécute mieux le 
travail dans de meilleurs conditions de 
sécurité s’il est utilisé à l’allure pour 
laquelle il a été conçu.
2)  N’utilisez pas l’outil mécanique si 
l’interrupteur ne le met pas en marche 
ou ne l’arrête pas.
 Tout outil mécanique qui ne peut pas être 
contrôlé par son interrupteur est dange-
reux et doit être réparé.
3)  Débranchez la fiche de la source 
d’alimentation et/ou du bloc de batterie 
avant d’effectuer tout ajustement, de 
changer d’accessoire ou de ranger 
l’outil mécanique.
 De telles mesures de sécurité préventives 
réduisent les risques de faire démarrer 
l’outil mécanique accidentellement.
4)  Rangez les outils mécaniques inutilisés 
hors de la portée des enfants et ne 
laissez personne qui n’est pas familiari
-sé avec l’outil mécanique ou ses 
instructions faire fonctionner l’outil 
mécanique.
 Les outils mécaniques sont dangereux 
dans les mains des utilisateurs manquant 
d’entraînement.
FR