Standard Pack = 1 piece(s). Coating=Uncoated; Maximum Bore Depth=1.25 IN; Maximum TPI=12 to 40 IN; Minimum Bore Diameter=0.29 IN; Model Number=IT-2901250; Overall Length=2-1/2 IN; Projection=0.07 IN; Right/Left Hand=Right Hand; Shank Diameter=5/16 IN; Thread Angle=60degree ; Type=Internal Threading Tool;