10PCS 6-68mm M14 Vacuum Brazed Diamond Drill Core Bit Tile Cutter Finger Milling Bit Chamfer Set for Granite Marble

Diameter 6/6/8/25/35/50/68mm, Total length: 60mm, 

Connection: M14 Thread, Diamond height 10mm/15mm;

1, Vacuum brazing technology provides longer working life; 

2, Wet and dry drilling, comprehensive specifications, wide range of applications, can meet different needs; 

3, Using high-quality base steel and diamond, combined with scientific ratios to create a steady increase in efficiency; 

4, 5.8MM wide lightning teeth design, 20-30MM 2 lightning teeth, 35MM and above 3 lightning teeth; conducive to debris and heat dissipation, better performance; 

5, Drill bit grit #35/40, drilling fast and smooth, reduce debris, reduce breakage, drilling finish is good, neat and smooth;