3M 78466-Q 3M™ Cubitron™ II Depressed Center Grinding Wheel, 78466, T27, black, 4 1/2 in x 1/4 in x 7/8 in (11.43 cm x 6.35 mm)

Cubitron™ II grinding wheel with precision-shaped grain engineered to cut faster than competitive ceramic products, offering significant productivity gainsTriangular shaped ceramic grain wears evenly, runs cool, and optimizes mineral breakdown for extra-long lifeRigid, reinforced resin-bonded wheel slices through almost all materials including stainless steel, mild steel, and aerospace alloysAbrasive wheel must have a maximum operating speed greater than or equal to the maximum speed of the power tool used