... ; 2) fast-changing tapping chuck, 3) safety device for auto feeding and withdraw. technical specification1) Max tapping diameter ... Outline dimension (LXWXH):832x566x932mmStandard accessories:1)Double-end wrench (30-32):1 pcs; 2)Double-end wrench (17-19 ... wrench (1.5,2,2.5,3,4,5,6,8,10): 1SET;4)Fast tapping chucks (J4016A/ ... can buy other pitches of gears from us. automatic teeth distance tapping machine