With the same key widths, UD profile, high torque transfer, chrome-vanadium steel 31CrV3, glare-free optics due to matte chrome plating, lock insert and locking pawl manganese phosphated, glow forged, jaw: precisely ground to exact nominal size for optimal contact surfaces. With adapter No. 7 RA or No. 7 RB (please order separately), the No. 7 UR becomes a (bit) ratchet, with the ring side angled at 13°, switchable. With the open-end wrench with ring ratchet No. 7 R for ratcheting loosening or quick release, user-friendly haptics due to the tapered shaft, torsion-resistant geometry with double-T beam effect.