Tape a penlight to the casing of your drill - you can then see exactly where you are even if it's dark. Drill with gentle pressure. Some models right at the top of the market now have nickel-metal-hydride (NiMH) batteries, which carry a longer charge and are more environmentally friendly. Make sure grinders, saws and similar equipment equipped with appropriate safety guards. Use appropriate safety glasses, face shields, etc. while using hand tools or equipment that might produce flying materials or be subject to breakage. A spade bit tends to tear the wood as it drills through the other side. Hammer or percussoin drills are great for drilling holes into brick work.

Do not attempt to service machine unless qualified to do so.

Do not wear loose clothing, ties or jewellery when using power tools.

Check that speed of abrasive wheel is compatible with the machine speed.

Keep the compressor tanks drained of moisture.

Ensure hand tools such as chisels and punches, which develop mushroomed heads during use, are reconditioned or replaced as necessary.

Do check circular saw guards to assure they are not wedged up. This would leave the lower portion of the blade unguarded.

Place effective guards over belts, pulleys, chains and sprockets.

Choose a lighter, lower-voltage drill for light-duty work, especially if you are using the drill for long sessions, or for overhead work. Choose a higher voltage for heavy-duty work.

If you want to drill thru a tile or other breakable material, mark the spot where you want to drill and cover with a couple of pieces of masking tape. The drill bit should not wander.

Power drill can be: