The bahco s4rm 3t is a professional grade reversible ratchet ring spanner set designed for efficient fastening work in confined spaces. This 3 piece set covers 12 metric sizes from 8mm to 19mm, making it a versatile addition to any mechanic's or tradesperson's toolkit. Manufactured from top quality forged steel with a nickel and chrome plated matt finish, these ratcheting spanners deliver both durability and a smooth, secure grip during operation. Each spanner features four sized ring heads—two at each end—allowing you to select the appropriate size without swapping tools. The reversible ratchet mechanism is operated by a simple direction lever, enabling you to tighten or loosen nuts and bolts with minimal angular movement. This makes the set particularly valuable for motor mechanics and maintenance engineers working in awkward or restricted areas where conventional spanners would require excessive swing clearance. The set comprises three double ended spanners covering 8 x 9 x 10 x 11mm, 12 x 13 x 14 x 15mm, and 16 x 17 x 18 x 19mm. All three spanners are supplied in a fabric carry case with integrated belt loop for convenient transportation and organised storage on site or in the workshop. Features and benefits bull top quality forged steel construction with nickel and chrome plating for long term durability bull four size design per spanner provides 12 sizes from just 3 tools bull reversible ratchet action requires minimal movement, ideal for confined spaces bull matt finish provides smooth and secure grip during use bull fabric carry case with belt loop for organised storage and easy portability specifications metric imperial metric min. Size mm 8 max. Size mm 19