Specification for bit braces.
NORMA vydaná dňa 26.11.1965
Označenie normy: BS 1978:1965
Dátum vydania normy: 26.11.1965
Počet strán: 18
Približná hmotnosť: 54 g (0.12 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
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 (linesmans brace) and 14 in (wagon builders brace). Status: Confirmed