Item #: 98661192Brand: Value CollectionModel #: Features and Benefits Diamond is one of the hardest and durable abrasive materials. Due to being constructed of diamonds, the cutting depth stays the same throughout its life for better control, reach and precision. Commonly used in grinding and polishing ceramic, stone and aluminum alloy. Product Specifications Grinding Pins; Abrasive Head Diameter (Decimal Inch): 0.728 ; Abrasive Head Diameter (Inch): 3/4 ; Abrasive Head Thickness (Decimal Inch): 0.394 ; Abrasive Material: Diamond ; Grade: Medium ; Grit: 80 Abrasive Head Diameter (Decimal Inch) 0.728 Abrasive Head Diameter (Inch) 3/4 Abrasive Head Thickness (Decimal Inch) 0.394 Abrasive Material Diamond Grade Medium Grit 80 Shank Diameter (Inch) 1/4 Shank Length (Inch) 2-1/2 Head Shape Wheel Diamond Concentration (percentage) 70