Safety testing:
All RobLion abrasive wheel be tested under the RPM table:Click here.

Application:
1, for metal --- Aluminium Oxide
2, for stone --- Silicon Carbide
3, for stainless steel --- White Aluminium Oxide

Technical specs:
1, Tolerance: axis: <=0.6mm, Surface: <=1.0mm
2, Surface:
      a, without cracking
      b, consistant structure
      c, hub thickness be the same with the thickness of wheel.
3, Balance: under GB2492 and GB9202-88 (item 3.5)
4, Hardness: under GB9202-88 (item 3.4)

update: Mar.23, 2010