4-in-1 Design, 8" Diameter, 5/8" Arbor

Grit: 80、180、350、600

This wheel has four usable features:

1. The face of the wheel is 1.25" wide for normal sharpening.

2. 1/4" radius on each side for sharpening hollowing tool bits and scrapers. 

3. Each side of the wheel has a 1" side face of CBN material for non-hollow grinding skews and scrapers.

4. The inside edge of the wheel has a 9mm, 90 degree gap (about 1/3") space shoulder for making relief cuts or tapers on hook type scrapers or box scrapers.

This wheel is 8" in diameter and has a 5/8" arbor hole.