Item Type: Tapping Chuck_x000D_ Specification: MT3_x000D_ Model Example Description: "MT3-M10"_x000D_ "MT3" Means: The model of the tool holder is Morse taper conversion tool holder_x000D_ "M10" Means: The clampable taps are M10 type_x000D_ Material: 40Cr_x000D_ Uses: Used for tapping hole of spindle hole of the lathe, tail hole of the lathe, drilling machine, milling machine, and various cutting machine tools_x000D_ ModelD1(approx.)d(approx.)w(approx.)_x000D_ MT3-M6-823.825mm / 0.9in6.3mm / 0.2in5mm / 0.2in_x000D_ MT3-M1023.825mm / 0.10in8mm / 0.3in6.3mm / 0.2in_x000D_ MT3-M1223.825mm / 0.11in9mm / 0.4in7.1mm / 0.3in_x000D_ MT3-M1423.825mm / 0.12in11.2mm / 0.4in9mm / 0.4in_x000D_ MT3-M1623.825mm / 0.13in12.5mm / 0.5in10mm / 0.4in_x000D_ _x000D_ D: Approx. 23.825mm / 0.9in