With the same key widths, UD profile, high torque transmission, made of chrome-vanadium steel 31CrV3, glare-free due to matte chrome plating, lock insert and locking pawl manganese phosphated, and heat forged. The open end is precisely ground to exact nominal dimensions for optimal contact surfaces. With adapter No. 7 RA or No. 7 RB (please order separately), the No. 7 UR becomes a (bit) ratchet. The ring side is angled at 13° and is switchable. Equipped with an open-end wrench with a ratcheting ring No. 7 R for ratcheting loosening or quick fastening. User-friendly tactile feel due to the tapered shaft, torsionally rigid geometry with a double-T beam effect.