Camel CGW 4" and 4 1/2" Quickie Cut Thin reinforced cut off blades made of a mix of Zirconia and Aluminum Oxide grain provides faster cutting and longer life.  Available in a Type 27 (depressed center) ZA60S Rigid Style with a thin cut (.045 thickness).  Grain Size:  Medium; Grade:  Hard.  For right angle grinders. Application:  Steel/Stainless steel.