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The Phillips/square screw drive, also known as the Quadrex, Pozisquare screw drive, is a combination of the Phillips and Robertson screw drives. While a standard Phillips or Robertson tool can be used, there is also a dedicated tool for it that increases the surface area between the tool and the fastener so it can handle more torque.
4 Security Screw Removal. 2 comments. 5 PHR bits. 6 comments. 6 Other Phillips profiles. 2 comments. 7 SPAX/Pozidriv confusion. 3 comments. 8 Changed spanner drive ...
Phillips offered his screw to the American Screw Company, and after a successful trial on the 1936 Cadillac, it quickly swept through the American auto industry. With the Industrial Revival at the end of the Great Depression and the upheaval of World War II, the Phillips screw quickly became, and remains, the most popular screw in the world. A ...
A marketing video demonstrates a screw that does not work well with either a Philips or flat blade screwdriver. The video claims the 7314 is designed to fit the "combination screws commonly found on electrical devices and conduit fittings." My "original research" indicates that this tool does not quite fit the screws on Leviton CBR15-W receptacles.
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The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers , with several other models, and model improvements patented by North Bros. over a 40-year ...