154025 Size: 8" Features: -3/8" Radius Profile Wheel MK-275.-Electroplated profile wheels for marble.-Provide clean, professional contours for marble and granite.-Require no special saw modification and mount to most tile saws quickly and easily.-Arbor: 5/8".-Radius: 3/8". Dimensions: -Item # 151694 - Diameter: 6", Weight: 1.96 lbs.-Item # 154025 - Diameter: 8", Weight: 4 lbs.-Item # 152022 - Diameter: 10", Weight: 5 lbs.