Best Cutting Effect The heat-treated premium aluminum oxide grains helps in quick cutting and maintains high durability.Tough abrasive cutting discs are perfect for super-fast, clean cutting in carbon steel, stainless steel, pipe, iron, copper, and all other ferrous metals. Strong Compatibility Perfectly compatible with all 4-1/2 inch(115mm) angle grinders with 7/8 inch(22.2mm) arbor.Operating up to 13,300 RPM and 80M/S. Wide Metal Applications Used for general purpose cutting of stainless steel, carbon steel, aluminum.The reduced heat-affected zone during the cutting process can minimize the generation of burrs.Its highly refined ingredients will not contaminate stainless steel, giving it a long-lasting and perfect surface. Cutting Wheel Thickness 0.0472 inch ultra-thin cutting thickness can improve the sharpness of the cutting and increase the cutting efficiency and save working time Universal Size Perfectly compatible with all 4-1/2 inch(115mm) angle grinders with 7/8 inch(22.2mm) arbor. Reliable Packaging The product adopts recyclable packaging, which not only prevents moisture and damage during transportation, but also can be recycled to protect the environment. Standard Mpa en12413 Diameter 4-1/2 inch (115 mm) Thickness 3/64 Inch (1.2 mm) Arbor 7/8 inch (22.2 mm) Maximum Speed 13,300 RPM & 80M/s SALI 50 Pack Cut Off Wheel 4 Inch SALI 25 Pack 4 Inch Grinding Wheels for General Purpose Metal & Stainless Steel, SALI 40 Pack Cut Off Wheels 4.5 Inch Depressed Center SALI 50 Pack Cut Off Wheel 4 1/2 Inch upgrade SALI 25 pack grinding wheel SALI 26pcs Grinding & Cutting Wheels 4 1/2 inch Set Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 61 4.4 out of 5 stars 109 4.6 out of 5 stars 1,367 4.6 out of 5 stars 1,367 4.7 out of 5 stars 306 4.5 out of 5 stars 77 Price $19.99$19.99 $26.99$26.99 $22.99$22.99 $21.99$21.99 $27.99$27.99 $14.99$14.99 Item Package Quantity 50 25 40 50 25 26 Item Weight(LB) 2.1 5.9 2.9 3.4 7.9 2.7 Cutting Diameter 4" 4" 4.5" 4.5" 4.5" 4.5" Max RPM 15,200 15,200 13,300 13,300 13,300 13,300 Max 80m/s 80m/s 80m/s 80m/s 80m/s 80m/s Arbor 5/8" 5/8" 7/8" 7/8" 7/8" 7/8"