Specification Brand : Greenteeth BulletPoint1 : Greenteeth 1/4" 80 Grit R100 Diamond Wheel BulletPoint2 : The 1/4" Diamond Wheel is used for sharpening Greenteeth. The wheel is 4" by 1/4" 80 grit R100 with a 1" arbor. A spacer is included that decreases the size of the arbor down to 1/2" and 5/8". Max RPM is 9070. ConstructionType : Diamond Wheel ItemName : Greenteeth® 1/4" 80 Grit Diamond Wheel ItemPackageQuantity : 1 ItemTypeKeyword : sharpening-stones Manufacturer : Super Abrasive Products Material : diamond MaximumRotationalSpeed : 9070 rpm NumberOfItems : 1 PartNumber : DIA-425 ProductDescription : The 1/4" Diamond Wheel is used for sharpening Greenteeth. The wheel is 4" by 1/4" 80 grit R100 with a 1" arbor. A spacer is included that decreases the size of the arbor down to 1/2" and 5/8". Max RPM is 9070. ProductSiteLaunchDate : 2016-06-23T15:45:02.052Z