uxcell M3 x 0.5 Metric SKS2 Straight 3 Flutes Bottoming Taper Hand Taps Set 3 Pcs Product Name : Hand Tap;Material : SKS2;Color : Silver Tone Thread Type : Bottoming ,Taper;Number ofFlutes : 3;Flute Diameter : M3(3mm) Flute Length(Approximately) : 20mm/ 0.8";Pitch Size : 0.5mm;SquareEnd Size : 3 x 3mm / 0.12" x 0.12"(L*W) Shank Diameter : 4mm / 0.16";Overall Length : 50mm / 2" Weight : 14g;Package Content : 3 x Hand Tap1 x Plastic Storage Case