Harvey Tool 869616 | 1/4" Diameter x 1/4" Shank x 3/4" LOC x 2-1/2" OAL 1FL Uncoated Carbide Ball End MillProduct Specifications Milling Diameter (Inch) 1 4" Milling Diameter (Decimal Inch) 0. 2500" Number of Flutes 1 Length Of Cut (Inch) 3 4" Length Of Cut (Decimal Inch) 0. 7500" Finish Coating Uncoated Shank Diameter (Inch) 1 4" Shank Diameter (Decimal Inch) 0. 2500" Single or Double End Single Overall Length (Inch) 2 1 2" Overall Length (Decimal Inch) 2. 5000" Center Cutting (Yes No) No LOC Multiple 3x Metric (Yes No) No Chip Breaker (Yes No) 0 Weldon