High-Speed Steel Cobalt Coated Stepping Drill Bit (4-32mm) - High Toughness Step Drill for Thin Metal, Iron & Various Materials | Perfect for DIY, Metalworking & Home Improvement Projects

Product Description

Feature:1. Cobalt coating reduces friction and operating temperatures and extends its life.2. No need for center punch, not easy to break, can be used for deburring, chamfering and opening3. High wear resistance, high toughness and high strength flexibility4. Available in seven styles for choice5. Widely used for perforating various materials, such as stainless steel steel, wood, thin iron, aluminum alloy, moisture-proof board, PVC board, etc.Spec:Item Type: Step Drill Bit Material: High speed steelStandard(optional): 3-12, 4-12, 4-20, 4-22, 6-24, 4-32, 6-35Package List:1 x Drill Bit