The Britool E117377B 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.

The Britool BRIE117370B Ratcheting Spanner 21mm has the following dimensions:
Size: 21mm
Length: 285mm
Weight: 540g