Weiler Tiger aluminum oxide 9 inch type 27 grinding wheels deliver the right combination of performance and value when grinding steel and other metals. The flat profile of the wheel in combination with depressed center allows for a wide range of grinding angles (0-45). These 1/4 inch grinding wheels are ideal for heavy stock removal, scale removal, weld removal, weld blending, edge beveling, and torch-cut softening with a right angle grinder. This versatile combo wheel leverages a strong bond that offers a long life solution for all your general purpose applications at an excellent total cost of use.