Tiger INOX 4.5 inch type 27 depressed center cutting wheels are specifically designed for high performance when cutting stainless steel. These wheels incorporate a Contaminant-free bond that delivers a worry-free solution for stainless steel applications. The depressed center provides added clearance when working at a constrained angle. The .045 wheel thickness is ideal for cutting tubes, bar stock, and large cross-sections with a right angle grinder. A smaller hub on 4.5 inch wheels keeps the wheel from gouging valuable parts as well as allowing for 30% more usable wheel area. Contaminant-free INOX wheels contain less than 0.1% iron, sulfur, and chlorine, resulting in a worry-free solution for stainless steel applications. Long wheel life on heavy duty applications. Premium aluminum oxide grains provide an even, sharp, clean cut rate and consistent performance. Dual reinforcement provides added strength for aggressive cutting. Smooth outer layer reduces friction that translates to an effortless cut and less kickback during operation.