ELORA 121 Open Ring Spanner Metric (ELORA Tools)ELORA 121 Open Ring Spanner Metric is a high-quality tool used for tightening or loosening nuts and bolts. Made from premium materials, it offers precision and durability for all your mechanical needs. Its open-ring design allows for easy access to tight spaces. Improve your productivity with ELORA Tools.Open Ring Spanner- for flare nuts e.g. at gasoline or hydraulic pipes- open rings are 15° bent- ring opening set at 30°- up to 13 x 14 mm and 7/16"x1/2" AF= hex. pattern,all other: bi-hex. pattern,- matt chrome plated- ELORA-Chrome-Vanadium 31CrV3 / 1.2208- according to DIN 3118- Refer to Chart Size Image for product specification