![]() ![]() Hex keys and bolt heads are notorious for stripping because of the small angle at which the force is applied. You’ve likely faced cam-out often with the slotted and Phillips head screwdrivers (“minus” and “plus” heads).Īnother reason for the widespread use of Torx is the higher torque transfer and resistance to wear when compared to the hex (Allen) key. The main benefit of the Torx bits is the higher resistance to cam-out – the likelihood of the bit slipping out of the screw and damaging the head. It appears that the Camcar Textron is even losing the grip on the Torx trademark, as the name is often used in the marketing of other manufacturers. ![]() It has expired a few decades ago, allowing everyone to use the star shape drive as they please. ![]() Because of its 6-pointed shape, it’s commonly referred to as star bit, while the International Organization for Standardization (ISO) has described the shape as hexalobular internal.īecause of the patent protection, Torx was only made by Camcar Textron and licensed manufacturers. Torx is the trademark name of the screw drive developed in 1967 by Camcar Textron. The difference between Torx Bits vs Star Bits is that Torx is the trademark name, while star represents the generic descriptor – the terms can be used interchangeably, as the tools are identical. There’s some confusion about the differences between them, especially the Torx and star bits. Screws and bolts come in different lengths, thread patterns, and thicknesses, but there’s also a matter of screw drive patterns. ![]()
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