The Robertson screwdriver, generally known as a square screwdriver, includes a square-shaped tip. Invented by Peter Lymburner Robertson in copyright, this type of screwdriver is extensively Utilized in woodworking and building assignments. It offers exceptional torque transfer and minimized cam-out, rendering it a well-liked alternative between Canadian DIYers and industry https://stephenalykz.amoblog.com/types-of-screw-heads-list-an-overview-51272416