uxcell 10 Pcs Square Head HSS M1.6 3 Flute Hand Screw Thread Metric Taps Product Name : Hand Tap;Flute Diameter : 1.6mm/ 0.06"(M1.6) Thread Length : 10mm/ 0.4";Square Head Size : 1.6x 1.6mm/ 0.06" x 0.06" (L*W) Shank Diameter : 2mm/ 0.08";Total Length : 34mm/ 1.3" Material : HSS;Net Weight : 10g Package Content : 10 x Hand Tap