toolant Four Spiral Flute Cobalt Step Drill Bit, 1/4″-3/4″ Impact Ready Four Spiral Flutes Unibit Step Bit, 1/4″ Hex Shank Unibit for Metal, Stainless Steel, Aluminum, Wood, Plastic

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90 DAYS 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.
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 Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
9 STEP SIZE – Includes 1/4″, 5/16″, 3/8″,7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″