Product Description Description: 3-piece professional step drill set Designed for sheet metal, plastics, and thin materials—drills multiple hole sizes with fewer tool changes Each step drill features precision-ground flutes for smooth, burr-free cutting Supplied in Alpha’s durable Tuffbox Pro case with secure latch and strong hinges Features: Manufactured from fully ground M2 HSS for strength and durability Tri-flat shank design prevents slippage in the drill chuck Step profile ensures accurate, clean, and repeatable hole sizing Compact Tuffbox Pro case for convenient storage and transport Specifications: Brand: Alpha Series: Onsite Plus Type: Step Drill Set Pieces: 3 Case: Tuffbox Pro Shank Type: Tri-Flat Part Number: SM3STQRSD-B Sizes: 4–12 mm (2 mm steps), 4–20 mm (2 mm steps), 6–30 mm (2 mm steps) UPC (EAN): 9313601027286 Enquiry Tell A Friend