Drill bits are the working end of drill tools. Bits are interchangeable, meaning that they can be removed from the end of the drill, either to replace a worn part or to change the size of the part.
See drill bits (wells) for the large ones used for drilling wells in the ground.
Auger bit for brace
Drill head for square holes
6 different sized center drills
Diamond core drill
Adjustable hole saw
11/32 inch drills - long-series morse, plain morse, jobber
square shank, screw extractors
12x640mm gun drill and 25mm gun drill tip
Coolant holes in tip and base of gun drill
Morse taper shank twist drills No's 1, 2 3 and 4
Core drill, for enlarging existing holes
8mm drill bit