Nomenclature, materials, heat treatment and hardness, dimensions, finish, marking, performance tests for ratchet brace fitted with chuck in nominal sizes 5 in, 8 in, 10 in, 12 in, 14 in and plain brace fitted with socket end in nominal sizes 9 in (linesman's brace) and 14 in (wagon builder's brace).Cross References:BS 309BS 310BS 328:Part 1BS 350BS 427:Part 1BS 970BS 1224BS 1408BS 2054BS 2590BS 2789