(B) Additional safety rules for hammer drills
a) Recommendation for the operator to wear hearing protection. Wear ear protectors with
drills. Exposure to noise can cause hearing loss.
b) Use auxiliary handles (if supplied with the tool). Loss of control can cause injuries.
c) Hold power tool by insulated gripping surfaces, when performing an operation where the
cutting accessory may contact hidden wiring or its own power cord. Cutting accessory
contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the
operator an electric shock.
d) Hold the power tool with a firm grip with both hands (if possible) and keep a good balance.
The tool is best guided with both hands. If bit gets locked, a strong torque reaction may occur when
screwing in or loosening screws.
e) Use appropriate detectors to determine if utility lines are hidden in the work area or call the
local utility company for assistance. Contact with electric lines can lead to fire and electric shock.
Damaging a gas line can lead to explosion. Penetrating a water line causes property damage or
electric shock.
f) Secure the workpiece. Never hold the workpiece in your hand or across your legs or against
your body. A workpiece clamped with clamping devices or in a vice is held more secure than by
hand. An unstable workpiece can cause loss of control of the tool and/or injury.
g) Position yourself so as to avoid being caught between the tool or auxiliary handle or bit and the
wall or posts or workpiece. Should the bit become jammed in the workpiece, the reaction
torque of the tool could crush your body.
h) Do not use dull or damaged bits and/or accessories. Dull or damaged bits/accessories have
a greater tendency to get jammed in the workpiece, or to break, or to be ejected.
i) When installing a bit/accessory in the chuck, insert the shank of the bit/accessory well inside the
chuck. If the bit / accessory is not inserted deeply enough, the grip of the chuck over the shank of the bit
/ accessory is greatly reduced likely to increase the risk of loss of control. After inserting the bit, pull on it,
so as to ensure that it is properly locked.
j) If the bit becomes bound or jammed in the workpiece, immediately stop the tool by
releasing the trigger switch, then reverse the rotation direction and slowly squeeze on the
trigger switch to release and remove the bit. Be ready for strong reaction torque likely to cause a
kickback.
k) Never grasp the tool (the chuck or the bit/accessory) while in motion and never place your hands
too close to the spinning chuck or drill bit. Laceration hazard.
l) Avoid touching the drill bit just after use, as it may be hot. Similarly, when removing the
bit/accessory from the tool, wear protective gloves to grasp it. Accessories (bits) may
become hot after prolonged use. Avoid contact with skin. Burn hazard
m) Always wait until the machine has come to a complete stop before placing it down. The
accessory can jam and lead to loss of control over the power tool.
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