Specification for engineers“ ratchet braces and drilling pillars.
STANDARD published on 10.2.1953
Designation standards: BS 1937:1953
Publication date standards: 10.2.1953
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: British technical standard
Category: Technical standards BS
Sizes, dimensions, material, for following open and enclosed drive ratchet braces: long head (box), short head, extra short head (pin brace), short head heavy duty (boiler brace), bit stock. Dimensions of drilling pillars for use with braces. For use with drills having Morse taper or square taper shanks, when necessary employing an adaptor, conversion details of which are included. Status: Confirmed