Combination Drill & Tap Bit Set 6pc AK3025

Threaded taps with drilling function, used to drill holes and cut new treads at the same time. Manufactured from HSS alloy steel with nitriding surface finish. Set Includes 6 Standard metric thread / pitch: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5 For hand drill or lathe use. Supplied in a sturdy storage case.