Curved ring spanners "heavy version", metric sizes • Recessed ring spanners "heavy version": intended for high tightening torques due to the very heavy design of the ring and the very long handle (to be ordered separately). • The recess under the handle provides more room for your fingers or an obstacle. Ideal for standard nuts. • Torsion pipe can be used: 54.M1B for sizes 24 and 30 mm; 54.M2B for sizes 32 to 41 mm; 54.M3B for sizes 46 to 55 mm; 54.M4B for sizes 60 to 70 mm. • Metric sizes: from 24 to 70 mm. • Version: chrome-plated, satin-finished.