Standard Pack = 1 piece(s). Coating=Uncoated; Maximum Bore Depth=0.5 IN; Maximum TPI=12 to 40 IN; Minimum Bore Diameter=0.29 IN; Model Number=ITL-290500; Overall Length=2-1/2 IN; Projection=0.07 IN; Right/Left Hand=Left Hand; Shank Diameter=5/16 IN; Thread Angle=60degree ; Type=Internal Threading Tool;