Robertson screwdriver
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Robertson_screwdrivers.jpg/220px-Robertson_screwdrivers.jpg)
Etymology
[edit]From Canadian inventor P. L. Robertson (1879-1951).
Noun
[edit]Robertson screwdriver (plural Robertson screwdrivers)
- (chiefly Canada) A type of screwdriver having a square tip, designed to drive a Robertson screw.
- 1963, Alonzo Wass, Building construction estimating:
- The Robertson-head screw has a square hole in the head, made in three different sizes, and must be driven with a special Robertson screwdriver.
- 2002, Mark Kearney, Randy Ray, I Know that Name!: The People Behind Canada's Best-known Brand Names from Elizabeth Arden to Walter Zeller[1]:
- The Robertson screwdriver is among the tools found at hardware stores and building supply outlets across Canada.
- 2007, William S. Peckham, Michael C. Hammar, Never Hang Wallpaper With Your Wife: Decorating and Renovating From a Guy's Point Of View[2]:
- Robertson screwdrivers have colour-coded handles, to make it easy to determine which size you will require.