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CIPDB › China Industry › Tools & Hardware › Drilling Tools

Spiral HSS Step Drill Bits¹

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Drilling Tools Step HSS Drill Bits Straight Flute Step Drill Bits

Zhenjiang Scharp Machinery Tools Co., Ltd.

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Product Description We make CBN fully ground HSS step drill bits. Made from high grades high speed steel, tin coating and tialn coating both avialable.Kinds of sets are available.Tin coating, tialn coating available.Laser marking.STC001A, INCH SIZES STEPS DRILLNo. of HolesDescriptionShank DiameterStep Thickness131/8" - 1/2" by 1/32" increase1/4"1/8"63/16" - 1/2" by 1/16" increase1/4"3/8"91/4" - 3/4" by 1/16" increase3/8"1/8"123/16" - 7/8" by 1/16" increase3/8"1/8"101/4" - 1.3/8" by 1/8" increase1/2"1/8" STC001A, INCH SIZES STEPS DRILLNo. of HolesDescriptionShank Diameter94 - 12mm by 1mm Increase6/6.5mm54 - 12mm by 2mm Increase6/6.5mm76 - 18mm by 2mm Increase10mm86 - 20mm by 2mm Increase8mm126 - 30mm by 2/3mm Increase10mm94 - 20mm by 2mm Increase10mm104 - 22mm by 2mm Increase10mm144 - 30mm by 2 mm increase14mm135 - 35mm by 2/3mm Increase13mm

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Drilling Tools: Spiral HSS Step Drill Bits

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