Quantity: 7pcs products with box 

(Diameter 20mm 27mm 35mm 55mm 68mm Drill Bit; Diameter 20mm Finger Bit; M14 male thread To 3/8" Hexagon Shank Adapter. each size one piece)

Specificiation: 

Drill Bit: Diameter 20mm 27mm 35mm 55mm 68mm, Total length: 75mm, Connection: M14 Thread, Diamond height 15MM;

Finger Bit: Diameter: 20MM, Workable Length: 50MM, M14 thread, Total Length: 65mm, Grit #50/60;

Adapter: M14 male thread, 3/8" Hexagon Shank, total length 55MM, shank length 28MM

Box Size: 33.5x14x10.5CM

Application: 

1. Drill Bit: Dry/wet drilling for porcelain tile, granite, marble, ceramic;

2. Finger Bit: Enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, marble and granite;

3. Aapter: M14 thread core bits can be fitted on hand drill or electric drill.

Feature: 

1.Less Chipping, Minimizing breakage, less heat generation, Better finish quality
2.Vacuum Brazed technology provides longer working life, Fast and smooth drilling
3.High diamond exposure rate provides a faster and more aggressive drilling
4. Vacuum Brazed technology provide much longer working life than electroplated ones (Generally 3-5times),Save your money and time....
5.Having less loss of material

6. Adapter: Good quality steel, long life, and Surface Nickel plating