Specification: Type: Step Drill Bit Material: High speed steel (HSS) Coated: Blue Coated Sizes: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm) Package Including: HSS Step Drill Bit Set.
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M35 alloyed HSS steel with 5% Cobalt content.
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Material: HSS. Superior quality HSS which makes your work more efficient and will reduce your man efforts. Its surface has been polished by the titanium processing so that will reduce friction and run cooler.
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Specification: ①.4-12X5(4-6-8-10-12) ②.4-12X9(4-5-6-7-8-9-10-11-12) ③.4-22(4-6-8-10-12-14-16-18-20-22) ④.5-23(5-7-9-11-13-15-17-19-21-23) ⑤.4-32(4-6-8-10-12-14-16-18-20-22-24-26-28-30-32) Material:HSS M35 Co Coated:TiAIN Blade:3 Flutes Handle:6.35mm(1/4" shank) 3 Flutes HSS-CO M35 Spiral grooved Step TiAIN Drill Bits Cut Tool Set.
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6 Pcs Drill Bit Set: Including 3 pcs step drill bits (one 5-Step Drill Bit from 4mm to 12mm, one 9-Step Drill Bit from 4mm to 20mm and one 15-Step Drill Bit from 4mm to 32mm), 3 pcs twist drill bits (3mm, 6mm, 8mm).
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Material: Constructed from high-speed steel (HSS) for strength and heat resistance. Versatile Sizes: Includes three step drills with sizes: 3-12mm, 4-20mm, and 4-32mm to handle a variety of drilling tasks.
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3pcs HSS Steel Step Cone Drill Hole Cutter Titanium Bit Set 4-12/20/32mm. Our step drill bits are then coated with titanium for superior durability. 4 ~ 32mm (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm), 6.35 mm shank.
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heller step drill 4 - 20 mm.
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