high-velocity projectiles.
-Always wear impact-resistant eye protection during the operation of the drill or tapper. The grade of
protection required should be assessed for each use.
-Remove the chuck key before drilling starts.
-Ensure that the workpiece is securely fixed.
Entanglement hazards
-Choking, scalping and/or lacerations can occur if loose clothing, personal jewellery, neckware, hair or gloves are
not kept away from the tool and accessories.
Operating hazards
-Use of the tool can expose the operator's hands to hazards, including cuts, abrasions and heat. Wear
suitable gloves to protect hands.
-Operators and maintenance personnel shall be physically able to handle the bulk, weight and power of
the tool.
-Hold the tool correctly; be ready to counteract normal or sudden movements and have both hands
available.
-Maintain a balanced body position and secure footing.
-High-reaction torque can be developed in the case of stalling, which can be caused by excessive loads
being applied to the drill bit, by the drill bit snagging on the material being drilled into or by the drill bit
breaking through the material being drilled.
-In cases where the means to absorb the reaction torque are requested, it is recommended to use a
suspension arm whenever possible. If that is not possible, side handles are recommended for straightcase tools and
pistol-grip tools. In any case, it is recommended to use a means to absorb the reaction torque above 4 N⋅m for
straight tools and above 10 N⋅m for pistol-grip tools.
-Keep hands away from the rotating chuck and drill bit.
-Release the start-and-stop device in the case of an interruption of the energy supply.
-Use only lubricants recommended by the manufacturer.
-Personal protective safety glasses shall be used; suitable gloves and protective clothing are recommended.
Repetitive motions hazards
-When using a drill or tapper to perform work-related activities, the operator can experience discomfort in
the hands, arms, shoulders, neck or other parts of the body.
-While using a drill or tapper, the operator should adopt a comfortable posture whilst maintaining a secure
footing and avoiding awkward or off-balanced postures. The operator should change posture during
extended tasks, which can help avoid discomfort and fatigue.
-If the operator experiences symptoms such as persistent or recurring discomfort, pain, throbbing, aching,
tingling, numbness, burning sensations or stiffness, these warning signs should not be ignored. The
operator should tell the employer and consult a qualified health professional.
Accessory hazards
-Disconnect the drill or tapper from the energy supply before fitting or changing the inserted tool or
accessory.
-Use only sizes and types of accessories and consumables that are recommended by the drill or tapper
manufacturer.
-Avoid direct contact with the inserted tool during and after use, as it can be hot or sharp.
