Educational woodworking for home and school (1908)
Park, Joseph C · New York, MacMillan · leaf 96
f a circle described by the handle (c) in makinga complete turn is called the sweep of the brace. Thesweep of braces varies from 4! to 14. The larger thesweep the easier the work can be done because of thegreater leverage. For boring holes near walls or ob-structions where a complete sweep cannot… … Fig. 78. — Screw-driver, a, blade; 6, handle; c, ferrule. 50. Screw-drivsr..— A screw-driver is used in drivingscrews. The blade is usually made of round steel whichis forged on the end to fit the head of a screw. The bladeis driven firmly into the body of the handle so that ithangs true. The…
Manual training · Woodwork
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
