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. EFFICIENT - Innovative 2-in-1 design boosts efficiency, reducing job time. PROFESSIONAL QUALITY - Manufactured from HSS alloy steel with nitriding surface finish. CONVENIENT - Supplied in a sturdy plastic storage case. CONTENTS - 6pc set includes: Standard metric thread / pitch: M3*0.5, M4*0.7, M5*0.8, M6*1, M8*1.25, M10*1.5 DIVERSE - Hex shank (6.35mm). For hand drill or lathe use.