1, Finish:Normal nickel plated as J-D-(A) or J-D-(B) and Black nickel plated as J-D-(C)

2, Teeth:There are 3 different teeth types as (A)old, (B)new, (C)new

3, Body:Same as the Carbon Steel Hole Saw body, it makes your cutting job easier and lower cost

4, Size Range from 19mm to 140mm

5, Arbor:no arbor

6, Function:It's able to cut holes in Glass, Tile, Ceramic, Marble and Granite etc.,

7, Drill:no drill

8, Diamond Teeth: We have three levels of quality,40/50Mesh(Top)50/60Mesh(Good)80/100Mesh(Medium)