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, it could provide a stable cutting with the arbor

4, Size Range From 19mm to 140mm

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

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

7, Drill:The glass drill in the arbor can only cut holes in glass,if you need to cut other materials, you must take the drill off and if possible, its better to use with the drill guide

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