Cut-off wheel, metal (for stainless steel) type 27, depressed center, 4-1/2″ x .045″ x 7/8″ arbor, a46q-bf. aluminum oxide metal cutting wheel. designed for metal cutting, metal abrasion, body work, metal fabrication and general repair work. used on stainless steel materials. designed to be used on right angle grinders only. iso 9001 certified. wheel size: 4-1/2″ thickness: .045″ arbor: 7/8″ spec: a46q-bf max rpm: 13,580 tool type: right angle grinder