PRO STORMER CD08-2120 - Using Your Drill; Drilling Wood; Drilling Metal

10
IMPORTANT: Before starting inspect your drill bit to ensure there is no excessive
wear and that it is sharp. Never use a drill bit if it is damaged or blunt.
Check that the drill bit is correctly fitted in the chuck and is the correct type for the
material you wish to drill a hole in.
Drilling wood
Ensure the piece of work you want to drill into is firmly anchored in place. Hold the
drill in a straight line with the end of the drill bit.
Apply enough pressure to keep the drill bit cutting through the wood.
When drilling through wood with a twist bit it may over heat if you do not clean any
chips and wood dust out of the flutes (grooves in the drill bit). To do this:
1. Stop the drill by taking your finger off the power trigger.
2. Switch the direction button into reverse then press the trigger until the drill bit
is clear of the wood.
3. Use a brush to remove any scraps or dust from the drill bit. DO NOT use your
fingers.
4. Switch the direction button into forward to continue drilling into piece of work.
Note: If you are drilling into a piece of wood that is likely to splinter you may want
to use a ‘back-up’ block of wood place behind the piece you are drilling.
You will drill a cleaner hole if you ease up on the pressure just before the bit breaks
through the back of the wood. Turn the wood over and complete the hole.
Drilling metal
There are two main things to remember when drilling through metal.
1. The harder the material, the greater the pressure you need to apply to the drill.
2. The harder the material, the slower the speed of the drill needs to be.
Below are a few tips to help when drilling through metal.
1. Lubricate the tip of the drill bit occasionally with cutting oil except when drilling
soft metals such as aluminium, copper or cast iron.
2. If the hole you wish to drill is quite large, drill a smaller hole first then enlarge
to the final size. This is generally a faster method in the long run.
3. Maintain enough pressure to assure that the drill bit does not just spin in the
hole. This will make the drill bit blunt and shorten its life.
Using your drill