9 PCS M35 Cobalt Steel 4 Flute Step Drill Bit Set, Hex Unibit with Countersink Bits, Center Punch for Home Metal Aluminum Steel Wood Working - color: Silver Black
Fields (ACP · UCP / Merchant Center)
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About this item 【Durable Upgrade M35 Cobalt Steel Drill Bits】Made of premium M35 Cobalt Steel with titanium coating, harder and more wear-resistant than regular bits. 118° split tip + 4 flute design delivers smooth, burr-free holes.Best for metal, aluminum, plastic and wood. 【Complete All-in-one Tool Kit】Contains 3 sizes M35 step bits, 5pcs 90° countersink bits, quick change hex adapter and upgraded automatic center punch. One set covers most hole expansion & countersink needs for DIY, auto wiring and electrical projects. 【Optimized Non-jamming Center Punch】Updated internal spring structure solves stuck issues. Provides clear indent marks on wood & thin metal, keeps drill from wandering without extra marking tools. 【Anti-slip Hex Shank & Clear Markings】3-flat hex shank locks firmly in drill chuck to prevent slipping. Deep laser-etched size labels never wear off, easy to control hole size and avoid over-drilling. 【Storage Case】Sturdy box with custom thick foam slots. Every tool has independent fixed position, avoids scratch and missing parts during transportation. Lightweight for toolbox storage. Overview Material: Cobalt Steel Cutting Diameter: 0.38 inches Finish Type: Titanium Nitride Shank Type: Hex Cutting Angle String: 118 degrees
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