Benchmark Abrasives 4-1/2" Aluminum Oxide Quality Thin Cut Off Wheel, 50 Pack. Benchmark Abrasives metal cutting wheel with a 4-1/2" diameter and a 7/8" arbor is used for cutting metal, steel, metal pipes, tubes, flat sheets, shipbuilding, rail, and general metal fabrication. Type 1 cutting wheels are completely flat and suitable for grinding operations. They provide consistent sharp, burr-free cutting with no loss of hardness. Professional cut-off wheels are suitable for various cutting operations on stainless steel, steel, aluminum, and various other metals. This highly efficient cutting wheel delivers smooth cuts (13,000 RPM) and lower vibration during operations. It ensures a high cutting rate at a lower cost. The ideal grinding wheel support angle and die grinders, high-speed saws, stationary saws, and chop saws. Made of high-speed steel material for solidity and efficient cutting. All of our abrasive products are made with quality materials and exceed both ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.