Expert BRIE113302B Ratcheting Spanner 9mm The Britool E117377B Ratchet combination spanners have a 5 degree; ratcheting head and a 12-point OGV ring end which is angled at 15 degree; from the handle axis (increment angle 30 degree;). The OGV Ring profile maximises contact surface with the nut for a longer lifetime. The switch to change ratcheting direction built into the handle prevents accidental change. Forged from Chrome Vanadium steel with a high chrome finish. ISO 691 - ISO 1711-1. The Britool BRIE113302B Ratcheting Spanner 9mm has the following dimensions: Size: 9mm Length: 142mm Weight: 40g