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Titanium Coated HSS Step Drill Bit 4mm-12mm
Product Description
Can cut through most steel sheets, aluminium sheets, copper & plastic & wood board etc.
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Features:
- Made by HSS with heat treatment and Titanium Nitride coating.
- Engraved Sizes to easily identify which size you need with the contrasted, laser engraved sizes inside the step drill bit flute.
- Increase the hardness and makes the bits last up to 4-5 times longer than ordinary drill bits.
- Drill round holes in most metals, plastic, wood, etc.
- Self—starting tips will not skid, no need for center punching or pilot drill.
- Designed to auto deburr the hole cut
- Used on electric drills and drill presses.
- Triangular shank will not spin inside the chuck.