A 4-1/2x1/4x7/8, Grinding Wheel, T-27, Resin Bond, WA24S, Stainless Steel # 40305 - depressed center grinding wheel is used here to grind a weld on a stainless steel hand rail. 

AA Abrasives depressed center grinding wheels are made with WA24S grain which is designed specifically for stainless steel and other high tensile alloys. Its special bond is excellent for aggressive removal of material without loading and for very fast stock removal on several types of metals. Contaminate free, it is specially made for food grade and nuclear plants.

All stainless steel, WA24S, grinding wheels are internally reinforced to assure maximum safety and performance. Our Stainless, WA24S wheels outlast other manufacturers wheels on stainless and ferrous metals by 30%. Depressed center wheels are sometimes referred to as raised hub wheels or by their shape designation of "Type", with Type 27 being the most popular. Use WA24S for fast cuts and long life on Stainless Steel and Steel. These grinding wheels can be used on pneumatic and electric right angle grinders.