I have worked with tools over 40 years and never seen an iron drill bit. Most common drill bits are HSS -High Speed Steel.
They drilled holes in wood.
Very slowly and have lots of extra drill bits.
Drill bits can be made from steel which is a mxture compriing mainly of iron. Many drill bits are coated with a very hard yellowish chemical compound titanium carbide. (made of titanium and carbon)
Hss drill bits, Titanium coated drill bits and brad point drill bits.
The different types of drill bits designed for drilling into metal are twist drill bits, cobalt drill bits, and titanium drill bits.
Drill bits are for fitting into a drilling machine to drill holes.
Drill bits are for fitting into a drilling machine to drill holes.
Drill bits are made of steel, and often coated with titanium or cobalt.
The only tool that uses drill bits is a drill. There are, however, many different types of drill bits. The drill bits vary by material, size, shape, and function.
For wood projects, the best drill bits are Brad Point bits or Spade bits. For metal projects, the best drill bits are Cobalt bits or Titanium bits.
Cobalt drill bits are good
When using a drill.