5PC MM TITANIUM STEP BIT SET

This Compact Set Replaces 44 Individual Drill Bits Manufactured With Heat Treated HSS Coated With Titanium Nitride, Two Flute Desig For Drilling Holes in Thin Material Such as Steel, Stainless Steel, Copper, Alum 4mm to 12mm Nine Step Bit 6mm Shank 4mm to 12mm Five Step Bit 6mm Shank 6mm to 18mm Seven Step Bit 8mm Shank 4mm to 22mm Ten Step Bit 8mm Shank 6mm to 35mm Thirteen Step Bit 10mm Shank