The Elora 58380 Metric Ratcheting Combination Spanner features an open end set at 15°. The ELO-Drive ring end is manufactured with a 72-tooth ratcheting mechanism, requiring only 5° of movement to turn a fastener, making it ideal for confined spaces. This spanner is forged from chrome vanadium steel, then hardened, tempered, and matt chrome plated for durability.