4mm Ø x 10mm Length of cut  x 1/4" Shank - TCT Straight double flute with plunge.

For solid timbers, MDF and chipboard (MFC) .
Can be used on CNC m/c's, fixed head and (800 watt) portable routers.
8mm diameter and below have a solid carbide insert.
Tool body produced from high quality "fatigue proof" steel.