Educational woodworking for home and school (1908)
Park, Joseph C · New York, MacMillan · leaf 101
Fig. 86. — Goes knife-handle wrench. 58. Wrench. — A wrench is used to turn the nutsof bolts and in turning screws, such as lag screws. There 82 EDUCATIONAL WOODWORKING are about thirty different styles of wrenches made, and inall more than two himdred sizes.
Manual training · Woodwork
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
