5pcs Counterbore Drill Bits Set,High-Speed Steel M3-M8 4 Flutes HSS-AL Straight Shank Counterbore End Mills for Copper Aluminum Steel Cast Iron
5pcs Counterbore Drill Bits Set,High-Speed Steel M3-M8 4 Flutes HSS-AL Straight Shank Counterbore End Mills for Copper Aluminum Steel Cast Iron
✨An essential hardware tool for industrial. ✨Material": HSS-AL super-hard high speed steel ✨Hardness": HRC65~68° ✨Drill Quantity":5pcs ✨Drill Size": m3, m4, m5, m6, m8. ✨Specifications":(BootBlade DiameterShank DiameterFull Length) ✨M3=3.25.9645mm M4=4.27.4648mm ✨M5=5.28.9651mm M6=6.210.4858mm ✨M8=8.213.41267mm ✨Package Weight": Approx.130g /4.6oz ✨Package Includes": 1 Set(5pcs) x Countersink Mill Cutters ✨We provide good customer service, please feel free to contact us if you have any questions. Thank you for your support of our store."
Product Features
- Mill cutters are made of hard high speed steel, High toughness, abrasion resistance, high-speed cutting for the high.
- hardness.rust-proof, and can be used for a long time.usually used to be assembled on milling machine.
- It includes 5 sizes in one counterbore set(m3, m4, m5, m6, m8). Size:Boot x Blade Diameter x Shank Diameter x Full Length: M3=3.2 x 5.9 x 6 x 45mm, M4=4.2 x 7.4 x 6 x 48mm ,M5=5.2 x 8.9 x 6 x 51mm, M6=6.2 x 10.4 x 8 x 58mm, M8=8.2 x 13.4 x 12 x 67mm.
- The cutting hole and the bottom hole of the tool have high alignment accuracy, reduce the time for changing tools, improve production efficiency and save mold making time.
- It can be processed directly or finely processed to the heat treatment mold. Suitable for grinding copper, aluminum, steel, cast iron, etc., usually used for assembling on a milling machine.