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![FTVOGUE Spiral Groove Step Drill Bit Set [4-20mm] - Hex Shank Cobalt High Speed Steel Cone Hole Cutter for Metal, Wood, Plastic - Perfect for DIY, Construction & Automotive Repair Projects](https://hkk-1257028036.cos.ap-hongkong.myqcloud.com/images//be8oamqxkpvn91b.jpg?imageMogr2/thumbnail/800x800/pad/1)
![FTVOGUE Spiral Groove Step Drill Bit Set [4-20mm] - Hex Shank Cobalt High Speed Steel Cone Hole Cutter for Metal, Wood, Plastic - Perfect for DIY, Construction & Automotive Repair Projects](https://hkk-1257028036.cos.ap-hongkong.myqcloud.com/images/be8oamqxkpvn91b.jpg?imageMogr2/thumbnail/800x800/pad/1)
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Description: Spiral Groove Step Cone Drill Bit is made from high quality high speed steel with titanium coated to reduce friction and heat, which is used to cut thin iron plate, aluminum material, insulation plate, PVC plate and more. Unique step structure make it possible to open various size of holes. Specifications: Material: HSS4241 + cobalt Surface Treatment: Titanium Plating Handle Shape: Hex Handle Diameter: Approx. 6.35mm/0.25in Bit Type: 3-12mm, 4-12mm, 4-20mm, 4-22mm(Optional) Package Includes: 1 x Spiral Groove Step Drill Bit
Made of high speed steel, hard, wearproof and durable.
Handle with titanium coated, reducing friction and heat.
Unique step structure make it possible to open various size of holes.
Compared with ordinary twist drill, not easy to break.
Ideal for cutting holes in a variety of materials including steel, bronze, aluminum and more.
