How to Use Metal Drill Bits Correctly
Drill bits used to drill metal are prone to wear. Properly using the drill bit lengthens the life of the bit and allows you to drill holes easier. The main factor that wears a drill bit is friction. Friction creates heat that breaks down the hardened nature of the bit. Reducing the amount of friction will substantially lengthen the life of your drill bits. Along with reduced friction, properly storing your drill bits when not in use will lessen the chances of the drill bit becoming lost or falling and becoming chipped or bent.
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Things You'll Need
- Drill
- 5/16th inch drill bit
- 1/4 inch metal plate
- Center punch
- Hammer
- Cutting and taping fluid
- Rag
Instructions
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1
Place the sharp tip of the center punch on the surface of the 1/4 inch metal plate. Strike the back of the center punch with the hammer to produce a center mark on the piece of 1/4 inch metal plate. The center mark allows the drill bit to remain stable on the surface of the plate. If the drill bit wanders, the cutting tip of the drill bit can break and cause the drill bit to stop functioning.
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2
Insert the drill bit into the drill. Apply cutting and tapping fluid to the drill bit and the center mark on the 1/4 inch plate.
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3
Align the tip of the drill bit with the depressed center mark located on the 1/4 inch plate. Holding the drill perpendicular with the metal plate and applying heavy pressure downward, depress the trigger of the drill. Pump the trigger of the drill motor to keep the speed of the drill bit slow. Apply additional cutting and tapping fluid to the drill bit and metal plate as soon as you notice smoke coming from the drill bit.
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4
Reduce the amount of pressure that you are applying to the drill when you come to the end of the hole. Reverse the drill motor if the drill bit binds in the hole being drilled. Add cutting and tapping fluid to the hole before you continue drilling the hole.
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5
Remove the drill bit from the drill when you have completed drilling the hole. Wipe the drill bit clean of metal shavings that have been created during the drilling process. Store the drill bit in a container or drill bit holder to keep it from becoming damaged by falling and bending.
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Tips & Warnings
Always wear safety glasses when drilling a hole in metal. Flying debris and metal shavings can severely damage your eyes.
