The Britool Expert BRIE117371B Ratcheting Spanner 22mm has the following dimensions: Size: 22mm. The Expert by Facom Ratchet Combination Spanners have a 5° ratcheting head and a 12-point OGV ring end, which is angled at 15° from the handle axis (increment angle 30°).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 1711-1.1 x Expert by Facom Ratcheting Spanner 22mm. The Expert by Facom Ratchet Combination Spanners have a 5 ratcheting head and a 12-point OGV ring end, which is angled at 15 from the handle axis (increment angle 30). 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.