Do you want to maximize cutting and reduce burr? Choose Camel CGW 4 1/2" diameter Quickie Cut Rigid reinforced extra thin cut off blades A36T made of Aluminum Oxide. Style: Type 1 (flat center), rigid and extra thin (.045 thickness). These wheels are thicker then the A60T, providing faster cutting and still provides a long wheel life. Also provides less vibration. Grain Size: Medium; Grade: Hard. For right angle grinders. Application: metal and stainless steel.