Harvey Tool 822755-C3 | 5/16 Thread 0.2400" Diameter x 0.0460" LOC x 1/4" Shank 4 Flute 60 Degree Incuded Angle AlTiN Coated Carbide Single Profile Thread MillThis metric offering of Thread Milling Cutters Single Form features tools intended to cut internal and external, right hand and left hand metric threads, and can mill multiple pitches. Single thread form can mill multiple pitches Cuts internal and external 60 Degree UN threads Mills right hand and left hand threads Tip of included angle ground to a point Solid carbide CNC ground in the USA Product Specifications Cutter Diameter (Inch) 0. 2400" Neck