toolant Four Spiral Flute Cobalt Step Drill Bit(Pro), 1/8"-1/2" Impact Ready Unibit Step Drill Bit, 1/4" Hex Shank Unibit for Metal, Stainless Steel,

toolant Four Spiral Flute Cobalt Step Drill Bit(Pro), 1/8"-1/2" Impact Ready Unibit Step Drill Bit, 1/4" Hex Shank Unibit for Metal, Stainless Steel,

FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter! TiAlN COATING - With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved. M35 COBALT HSS STEP DRILL - Prefect for 1/8“(3mm) thick Stainless Steel/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. 13 STEP SIZES - Includes 1/8",3/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16",15/32", 1/2". WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement. If the hex shank snap off, please contact us for replacement.