Teng Tools – Teng Tools 11 Piece Double Ring Wrench Set 6 To 22mm – 6311 – TEN-O-6311

11 Piece Set of Metric Double Ring Wrenches. Sizes: 6 x 7mm, 8 x 9mm, 10 x 11mm, 12 x 13mm, 14 x 15mm, 16 x 17mm, 18 x 19mm, 20 x 22mm, 21 x 23mm, 24 x 27mm, 30x 32mm. Different bi-hexagonal openings at each end. Made of Chrome Vanadium. Satin Finish for increased grip in oily environments. Supplied in a colored box. Manufactured and designed in accordance with DIN3113A. The ring head is offset 15 degrees to facilitate use even on flat surfaces. All ring heads are equipped with Teng Tools hip grip system, which means the contact surface grips on the flat surfaces of the nut or bolt head rather than on the corner. This system helps to prevent damage to nuts and bolts and makes it possible to grip nuts and bolts which already have damaged corners. A Typically Teng new design in combination wrenches that gives an anti slip grip on the open end as well as the Teng hip grip function where the wrench drives on the flank of the fastening rather than on the corner. Two design features that combine to give a much better grip with much less risk of damage to the fastening. The design also gives grip on fastenings with worn or rounded corners.