Product Name: Vacuum Brazed Diamond Beveling Chamfer bit For enlarging, polishing and bevelling the exist holes Quantity: 1pc Specification: Mortar Raking Bit Diameter 4MM / 8MM , Work length 25MM, Total Length 55MM, 5/8-11 thread, Grit #40/50 Diameter 8MM, Work length 100MM, Total Length 130MM, 5/8-11 thread, Grit #40/50 Finger Bit Diameter 10MM 20MM 25MM , 50MM workable length, 5/8-11 Or M14 thread, Grit #50/60 Cone Drill Bit Dia 35mm/ 1 3/8": workable length 35mm; 5/8-11 thread; Grit #80; Dia 50mm/2": workable length 46mm; 5/8-11 thread / Hex Shank; Grit #80; Dia 82mm/ 3-1/4": workable length 49mm; 5/8-11 thread; Grit #80; Application: For enlarging, polishing and bevelling the exsit holes. Features: 1. Vacuum Brazed Processing, high diamond concentration provides for a faster cut rate while the high quality of the diamonds provides longer working life 2. Strict production process to ensure the perfect combination of the cutter head and the base. 3. Bevel Ease chamfers and stress relieves rough holes in glass, ceramic and porcelain tiles. 4. Very useful to reduce the risk of cracking with standard and large format tiles subjected to tension (ex tightened plumbing, led lights etc). 5. Very useful to improve the edge finishing of exposed holes. 6. Dry or wet use. NOTE : This is not a core bit for drilling. It doesn’t make holes but it bevels the hole cleaning and reinforcing the borders when the borders are chipped or need to be clean. ================THE END================