“Where the square has a fast and a loose head, the blade should be mortised into the fixed one and the nut and thumb screw arranged as shown; the movable swivel head being used the least.” —Grimshaw, 1902
Grimshaw, Robert Modern Workshop Hints (Philadelphia, PA: Sampson Low Marston & Company LTD, 1902)
1748×2400, 279.6 KiB
745×1024, 40.8 KiB
466×640, 21.6 KiB
233×320, 8.5 KiB