①Advanced function Ⅰ: G-LESS (loose grip prevention) mechanism (PAT.)

The PUM-X was the first among adjustable angle wrenches to adopt the G-LESS mechanism for resisting looseness in the vertical direction.
※ (Except for UM49XDS)
②Advanced function Ⅱ：X-DRIVE

Thanks to the stress relief structure, the new “X-DRIVE” disperses more stress applied to the edges than the conventional tools. Thus, the X-DRIVE can easily apply torque, enabling stable tightening and loosing work, without collapsing the edges.
③Advanced function Ⅳ：RFH (Round form handle)

The newly shaped (round) handle easily fits the hand.