Drill Bits Buying Guide
If you need to drill a hole through a surface, you can make use of drill bits. These 'bits' are attached to the drilling tool. Fortunately, there are drill bits suitable for almost all types of applications, tasks and projects.
Types of Drill Bits and Uses
- Twist bits are commonly used for drilling into plastic, light metal and wood.
- Spade bits are used for drilling larger holes.
- Brad point bits have additional wider flutes to remove wood and are used for drilling into wooden surfaces.
- Auger bits are also used for drilling through wood.
- Hole saws are used for boring light metal and larger pieces of wood.
- Tile or glass bits are used for drilling into tiles or glass.
- Masonry bits are used along with rotary or hammer drills for drilling into masonry or concrete.
- Drill saw bits are used for making holes and irregular contours in metal or wood.
- Forstner bits are used for boring holes (flat bottom) in wood.
- Step bits are used for drilling into copper, plastic, wood, aluminium and brass.
- Installer bits have a hole in the head through which you can pass a wire. This application is appropriate for installing security, TV or phone wires.
- Countersink and counter bore bits can be altered and are excellent for creating a wider hole so that screws can be fitted in.
- Left-hand drill bits are used for extracting broken or stripped right-handed bolts or screws.
Materials Used
- Steel bits
- Titanium-coated bits
- Zirconium-coated bits
- Carbide-tipped bits
- Cobalt bits
- Black oxide drill bits
Choosing Drill Bits
- Chose drill bits that last longer and are sharper.
- Your choice of drill bits depends on the project and the kind of surface which needs drilling.
- You need to buy the right style and shank size according to the recommendations of the manufacturers.
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