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Bit braces
This British Standard relates to bit braces (sometimes referred to as carpenters’ braces), of the following types and nominal sizes:
Type 1. Ratchet brace fitted with chuck (see Figure 1) having a range of nominal sizes as follows: 5 in, 8 in, 10 in, 12 in and 14 in.
Type 2. Plain brace, fitted with socket end (nose) which includes the types known as wagon-builder’s brace, 14 in nominal size and linesman’s brace, 9 in nominal size (see Figure 2).
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).
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