A piece of steel rod about 4-6 inches long, with a Flute cut in one half, ending in a point. Various thicknesses from 1/16 to 3/4 inch.
metal drill bit has a finer point
A titanium or cobalt drill bit.
The precise shape and angles of a drill bit.
A tungsten coated drill bit.
You need a diamond tipped drill bit to drill glass or tile.
That is a drill bit designed to remove partial drill bits that have broken in a hole
You attach a drill bit into the chuck of the drilling machine.
.50196850"
You can drill holes in aluminum with a drill as long as you have the proper drill bit. Use a regular drill bit and keep speed moderate.
That size is 8-32. The drill bit for a clearance hole is 11/64, or a #17 drill bit.
Surprisingly enough- a 6 mm drill bit, or if you don't have one,1/4 drill bit will do.
How about bit (as in drill bit) or possibly awl.