uxcell BSW3/8-16 Straight 4 Flutes Bottoming Taper Hand Taps Set 3 Pcs Product Name : Hand Tap;Material : SKS2;Color : Silver Tone , Gray Thread Type : Bottoming , Taper;Number ofFlutes : 4;Flute Diameter : 3/8"(BSW3/8-16) FluteLength(Approximately) : 32mm/ 1.3";SquareEnd Size : 7.5 x 7.5mm/ 0.3" x 0.3"(L*W) Shank Diameter : 9mm / 0.35";Overall Length : 75mm / 3" Weight : 110g;Package Content : 3 x Hand Tap1 x Plastic Storage Case