Item #: 98660533Brand: 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): 0.250 ; Abrasive Head Diameter (Inch): 1/4 ; Abrasive Head Thickness (Decimal Inch): 0.125 ; Abrasive Head Thickness (Inch): 1/8 ; Abrasive Material: Diamond ; Grade: Fine Abrasive Head Diameter (Decimal Inch) 0.250 Abrasive Head Diameter (Inch) 1/4 Abrasive Head Thickness (Decimal Inch) 0.125 Abrasive Head Thickness (Inch) 1/8 Abrasive Material Diamond Grade Fine Grit 120 Shank Diameter (Inch) 1/8 Shank Length (Inch) 2 Head Shape Cone Diamond Concentration (percentage) 70