Tool Kits By Qaninan

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 - 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.
 


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