TYPES OF DRILL BITS
Metal drills
- Twist drill
- Gun drill
- Center drill and spotting drill
- Core drill
- Left-hand bit Screw extractor
- Countersink bit
- Indexable drill
- Spade drill
- Trepan
- Ejector drill
Wood drills
- Lip and spur drill
- Spade bit
- Forstner bit
- Step bit
- Center bit
- Auger bit
- Gimlet bit
- Hinge sinker bit
- Adjustable wood bit
Other materials
- Diamond core bit
- Masonry drill
- Holesaw
- PCB through-hole drill
- Installer bit