Why The Square Robbie Robertson Screw Head Is Superior

by Fred Scheuler In 1906 Peter Lymburner Robertson, wounded by the slippery slot of the primitive screwnail, invented the square recess

The Robertson Screwdriver set includes four square screwdrivers with 2-component handles for comfort All of the tips are colour-coded

slot thailad History of Square & Phillips screw drivers Back in the day of slots he contended that the hammer was the best screwdriver on

slot machine games you can win real money Use a slot screwdriver with a blade tip width that is the same as the width Square-tipped screwdrivers that hold screws with