Ko-ken Tools 1/2 Sq. Dr. Socket 27mm Surface Length 43mm Tohnichi Self-tightening feature automatically increases gripping

Self-tightening feature automatically increases gripping force proportional to increased torque to prevent tool shank slippage

Self-locking on pipes and nuts: no slipping off the workpiece and low hand force required

435QR N - L

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Ko-ken Tools 1/2 Sq. Dr. Socket 27mm Surface Length 43mm Tohnichi Self-tightening feature automatically increases grippingSurface drive sockets are designed to retain contact with flat sides of nut to transmit high torque and reduce nut wear. Compared to FLAT DRIVE, SURFACE DRIVE utilizes contact on the larger area closer to the center of the bolt or nut. SURFACE DRIVE is useful for painted face nuts or any bolt or nut made of soft material, with less risk of damaging the faces. SURFACE DRIVE can also be useful for a bolt or nut that has been damaged or deformed. Input