The Britool E117377B ratchet combination spanners' class='desclinks'>spanners are forged in chrome vanadium steel with a high chrome finish. The 12-point OGV® ring is angled at 15° maximising the contact surface with the nut for a longer lifetime. The open end is angled at 15° from the handle axis with a 5° increment.

ISO 691 - ISO 1711-1.

The Britool BRIE113304B Ratcheting Spanner 12mm has the following dimensions:
Size: 12mm
Length: 173mm
Weight: 78g