These machine bits have two wings, two scribers and a centre point. Tungsten carbide tipped for extensive drilling of particle boards, and plastics of soft to medium density. The scribe gives a very clean entrance hole. Not for use on hard dense mate...

These machine bits have two wings, two scribers and a centre point. Tungsten carbide tipped for extensive drilling of particle boards, and plastics of soft to medium density. The scribe gives a very clean entrance hole. Not for use on hard dense mate...