â€Cutting Edge Diameter: 0.8 - 3.0mm (0.8/1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/3.0mm), 10Pcs.: â€Advantage: With sufficient flexural strength and wear resistance, which ensure high work efficiency. Sharp cutting edge, milling, hole and plate edge, clean surface, neat, no glitches. â€Material: Using ultra-fine grained carbide material, with good milling and cutting performance. â€Application: PCB, SMT, CNC, Mold, plastic fiber, carbon fiber, hard wood, printed circuit board, and other precision parts processing. â€Genmitsu CNC Bits Selection Guide: To learn more about how to choose your bits in Genmits, please find the Comparison Chart (PDF) at the Product Guides And Documents Section below.