Basic Safety On The Use Of Die Grinders
Following good safety practices when using a die grinder is a must. Make a habit of including safety in all your
Wear proper hearing protection, as needed.
• Dress right. Do not wear loose clothes or jewelry. Contain long hair. Loose clothes, jewelry, or long hair can be caught in moving parts.
• Crowded, cluttered work areas that can cause tripping or loss of balance are particularly dangerous.
• Never alter a guard or use the tool with a guard missing. Be sure all guards are in place and working properly before each use. Do not defeat guards.
Choosing the correct tool and the proper accessory for your application can help to reduce the risk of serious injury. When used according to the manufacturer’s instructions, the proper tool and accessory will do the job safer and faster.
• Use the correct accessory for your tool. Check this carefully: Does it fit the spindle of the tool. Accessories with spindles that do not match the tool will wobble and vibrate and may cause loss of control.
• Accessories must be used only for recommended jobs. For example: do not grind with the side of a cut-off wheel. It will shatter, causing a serious risk for injury.
• Be sure to properly secure all die grinder accessories that use a collet.
• Be careful not to over-tighten the spindle nut of the tool. Too much pressure will deform the flanges and stress the wheel.
Take time to review your work piece and make sure that all necessary precautions have been taken before grinding.
• Use grinding wheels when working with hard materials – such as steel. Use rotary cutters for soft materials – such as aluminum, brass, copper and wood. If you use wheels on soft material, it will cause over loading, and could cause the wheel to shatter or disintegrate. Dangerous flying objects could result. Always place the work piece securely in a vise or clamp securely. Never make freehand cuts. Holding the work piece by hand is unstable and may lead to loss of control.
Before working with a die grinder, make sure the tool and its accessories are in proper working order. Failure to do so may increase your risk of injury.
• Be sure the switch is in the “off” position before plugging it in.
When installing a mounted grinding wheel, burr or cutter in the collet, keep distance between the back of the wheel and the front of the collet (overhang) at a maximum of ½ inch. This prevents spindle bending and wheel damage
that could cause injury.
• Never use cracked or damaged accessories. Carefully check them before each use.
• Always check accessory for tightness on the tool before each use. A loose cutter or wheel can be thrown from the rotary grinder and can cause serious injury. If the grinder is dropped, inspect it for damage, such as a cracked accessory, broken collet, or bent mandrel. Repair or replace damaged parts to prevent further breakage and thrown objects.
• Never over-tighten a collet. It can damage the cutter or wheel. Allow new wheels to run for a minimum of 1 minute to check for proper balancing.
• For maximum control, hold the grinder firmly with both hands.
• Always hold the accessory end of the tool away from you and co-workers to prevent possible injuries.
• Die grinders operate at high speeds. To avoid injury, be very careful not to contact the accessory end or be hit by thrown objects.
• Too much pressure during use can bend or break the collet, mandrel, or accessory. If the grinder runs smoothly when not under load, but does not run smoothly under load, then too much pressure is being used.
• Never use a rotary die grinder with the cutter pointing toward you. If the grinder should slip, the accessory could cause injury.
• Never hold the workpiece by hand. Keep your hands and fingers away from the working area. Contact with the cutter or wheel will cause injury.
- Equipment Safety
- Industry Safety
- Occupational Health
- Occupational Hazards
- Personal Protective Equipment
- Eye Protection
- Hand Protection
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