Cordless power drills are classified by voltage – the higher the voltage, the more speed and torque available. Most models will have adjustable torque and a keyless chuck.
Corded drills are classified by wattage and follow the same idea as cordless drills - the higher the wattage, the greater available torque and speed. They also generally feature a hammer function which aids drilling through masonry.
- You should always wear proper safety glasses
- Never wear loose clothing or dangling jewellery which could catch in the drill as you lean over it
- Always unplug a corded drill before changing bits
- Don't forget to remove the chuck key, if it doesn’t have a keyless chuck, before switching on the drill
Tip 1 - Drill A Smaller Hole
When drilling wood, drill a smaller hole prior to screwing or using a large drill bit. This will help prevent the wood splitting.
Tip 2 - Create a Centre Punch
For metal, an automatic centre punch provides starting point for the drill bit and stops it wandering around the metal ruining the surface.
Tip 3 - Mark Maximum Depth
No matter what the surface a handy tip is to use masking tape to mark maximum depth on the drill bit.
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