Although the terms "square drive" and "Robertson drive" are often treated as the same, there is a big difference - Robertson drives and Robertson screws have a slight taper to the square recess and a square drive and screw does not.
Roberts...
Reviews
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Screw review
Bought the screws and screwdrivers and drive bits Rob raves about, and I am now a fan too!
Anonymous · March 25, 2023
A Bit Disappointed
Slips out of the screw head and spins unless the drill speed is very, very very slow. The metal out of which it is made seems soft because the square profile is starting to round off after only driving a dozen screws. I expected better from Rob Cosman.
Anonymous · December 4, 2022
Robertson screws and bit
I use the Robertson screws on all my projects that require mechanical fastening. The Robertson screws work well and are easy to install with the proper bit.