•规格:8, 9, 10, 11,12, 13, 14, 15, 16, 17, 18, 19毫米

•Size： 8, 9,10, 11, 12,13, 14, 15,16, 17, 18, 19mm

•整体采用40CRV锻造

•Hot Drop-forged with Chrome Vanadium

•表面采用镜面抛光，镍镍铬处理，不易生锈

•Suface deal with mirror polish, Ni-Ni-Cr, keep long time good

•72齿棘轮设计，转动一次只肅要5°利于在狭小空间使用

•Make use 72T ratchet design, move ratchet only use 5*. suitable for the small space to use

•检验标准DIN3113

•Accepted standard DIN3113