① X-DRIVE PAT.

With its three-face contact stress relief structure, “X-DRIVE” disperses more stress on the edges than conventional models. Therefore, it easily applies torque, enabling stable tightening and loosening without collapsing the edges.

②G-LESS (loose grip prevention) mechanism PAT.

With the ball and spring inserted in the base of lower jaw, the looseness in vertical direction A will reduce. Thus, enabling stable tightening and loosing work.

③ B-less (backlash-free) mechanism

Using power of spring, the lower jaw rack is sandwiched by Worm A & Worm B to the point that there is no gapping. It prevents the lower jaw from loosening parallel to the upper jaw B when re-gripping bolts or nuts.

④RFH (Round form handle)

Ergonomic round shape of handle

⑤ Handy measuring scale