1, Finish:Normal nickel plated on the top or black nickel plated in the bottom

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

3, Body:Same as the Bi-metal Hole Saw body, but there is a thread screw in the end to fit the bars.

4, Size Range From 19mm to 140mm

5, Arbor:The UKJ-C type diamond Hole Saw must be used with the bar together.

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)