Cubic boron nitride (CBN) is the coating used on this OptiGrind steel wheel. It is superior in every measurable way for grinding hardened steels – far better than aluminum oxide wheels and diamond coated wheels. How so? CBN is a good conductor of heat so most of the heat generated by grinding is dispersed quickly. The wheel is balanced, flat and true – it will never require dressing. The coating is tough – it will not come off (we’ve tried)! CBN is four times harder than aluminum oxide and while not as hard as diamond, CBN won’t form carbides with the steel it’s grinding as diamonds will, which means that it will last a long, long time. Finally, the wheel won’t break or fracture, won’t come apart, and generates little if any sparks. The OptiGrind is 170/200-grit, which is optimal for effective stock removal and sharpening without being overly aggressive. It is a full 1" wide with one flat face coated about 3/4" from the edge. We offer the OptiGrind wheel and special flange as a single unit to fit a 5/8" arbor, such as the one on our Rikon (158512) Slow-Speed Grinder.
C**D
first impressions are not great
Did anyone else's wheel arrive scratched up and dirty on the side? Mine looks kind of like it has been used. Also there was 0 documentation or instructions in the box. I realize it doesn't take a brain surgeon to install a wheel, but stuff like "don't use the flange that you use on a regular wheel" might have helped. Overall for $230 I'm a little disappointed with initial impressions.
A**I
Mawwiage.
I want to marry this wheel.
Trustpilot
2 weeks ago
1 week ago
