3-Piece Step Drill Bit Set

材质：高速钢（HSS），镀钛、螺旋槽
Material: High-Speed Steel (HSS), Titanium Coated, Spiral Flute
特性：含4-12mm、4-20mm、4-32mm三种规格；螺旋槽设计排屑快，镀钛处理耐磨，双泡壳包装
Feature: Includes three sizes: 4-12mm, 4-20mm and 4-32mm; spiral flute for fast chip removal, titanium coating for wear resistance, double blister package
使用场合：不锈钢、铁板、塑料等薄板扩孔与开孔
Application: Enlarging and drilling holes in thin stainless steel, iron and plastic sheets

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Sichuan Machinery Tools Imp. & Exp. Co., Ltd.

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