Mega Square 8" CBN Wheel 350 Grit

This wheel is for customers who are not concerned about having a radius edge, it offers more flat area on both the surface and sides than any of our other wheels. The wheel edge is covered with CBN material and is a full 1.5 inches wide and 8-inches in diameter. The side faces are a full 1-inch of CBN material! Because we use 6061 Aluminum this beast of a wheel only weighs in at 4 lbs, 10 oz. The stone wheels that come with most grinders weigh 3 lbs, 7 oz – so this wheel, while being massive, only weighs about one pound more.

FAQ

Which Grit CBN wheels should I buy?
That depends on your style. If you reshape tools often or make some of your own tools on occasion, get the 80-grit wheel as your low grit wheel. If you don't do that type of grinding much, then get the 180 grit. For sharpening and touching up your tools we suggest the 350 or 600. The 350 grit wheel is better for softer tool steel like M2 while the 600 works well with M42 and Powdered Metal. Use of our Wonder Slick Stick is suggested with both of those grits to help keep the wheel clean and from loading up with particles of metal. They will leave a scary sharp edge on your tool and remove very little metal, leaving you with a tool that will last a lot longer.

I have heard that you can only sharpen certain types of steel with CBN wheels. What should I avoid?
Stay away from soft steels; aluminum, brass, and high carbon tools to name a few. A good rule of thumb is if the item being ground throws off a lot of sparks then don't make a steady habit of grinding it. Occasionally is ok as long as long as you go back to sharpening high quality steel so it will help clean out the pores in the wheel.

Will the wheels fit/run on my grinder?
Most likely the answer is yes. Most 8-inch grinders out there have a 5/8 shaft and some (Baldor 8 inch) have _ inch shafts and we carry both sizes. Our 6-inch wheels have 1/2 inch shafts as most 6 inch grinders do. We do carry a step-down bushing from 5/8 to 1/2 inch for those oddball grinders. Our Radius Edge, Mega Square and 4-1 design wheels have hubs that are 1.25 inches wide so they will fit on most 2-inch-long shafts and have room for the self-alignment washer kits. Our Spartan wheel hubs are 1 inch wide and have a 5/8 arbor and 1 inch long hub. It may be necessary to purchase additional flat washers to make sure the threads on the shaft can reach the Spartan wheel or if it is desired to keep the guard on the grinder. It may be also necessary to have a flat washer between the wheel and the motor to keep the guard on so there is enough clearance.

With the exception of normal wear of the CBN abrasive from sharpening turning tools your CBN wheel has a one-owner lifetime warranty.

What does this Lifetime Warranty Cover?
Your cbn wheel will not warp, twist or have run out - which might cause it to become unbalanced.The CBN material and the electroplating of the CBN abrasive material will not peel, chip, crack, come off or rub off which would render the wheel unusable.Any wheel being returned for warranty purposes will be shipped at the owner's expense. Replacements are at the sole discretion of the management at Wood Turners Wonders. Return postage for any new replacement wheel shall also be the responsibility of the owner of the returned wheel. Warranty is null and void if the wheels are not used for the purpose in which they are intended, such determination shall be at the sole discretion of Wood Turners Wonders.