Drill bits included: 2x6mm, 3x8mm PVD Titanium coating with a carbon Nitride cutting speed. Used for interrupted cuts and has a long lifetime for best probability. HSSE - Titanium Carbon Nitride
Spot Weld Drill Bits are designed to effectively cut auto panel spot welds Made of Cobalt Steel, the high red hardness permits speeds 30% greater than high speed steel spot weld drills Cobalt Steel...