QM棘轮式扭力起子特点：
.QM棘轮式扭力起子精度± 5％，符合根据DIN ISO 6789和ASME B107.14M -1994
.6.35mm六角接口以及方榫两种任意选用
.自动调节旋钮设计
.QM棘轮式扭力起子具有易于阅读的刻度盘
.舒适的人体工学橡胶手柄
.Range:1/4″ dr. 1~6Nm
.Tolerance of Torque ±5% quality meets DIN ISO 6789&ASME B107.14M -1994
.6.35mm(1/4″) Hex drive for bit
.Automatic adjustment knob design
.Easy-to-read laser scale
.Ergonomic comfort rubber Grip