CGW Abrasives 36255 Depressed Center Wheel 4-1/2" x 1/4" x 7/8" Type 27, 24 Grit Aluminum Oxide Economical choice for grinding meta Applications: Cutting/Notching Applicable Materials: Metal Used With: Right Angle Grinder Specification: BRAND: CGW Abrasives ABRASIVE MATERIAL: Aluminum Oxide GRIT: 24 GRADE: Extra Coarse DIAMETER INCHES: 4-1/2 CENTER HOLE DIAMETER INCHES: 7/8 MAX RPM: 13300 WHEEL TYPE: Type 27 APPLICATION: Cutting/Notching TOOL COMPATIBILITY: Right Angle Grinders SUGGESTED USE: Metal THICKNESS INCHES DECIMALS: .25 THICKNESS INCHES FRACTIONS: 1/4