T55 x 55mm 1/2" Drive Torx Star Socket Male T-Star Cr-V Steel AU638

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The metric system is more widely used in other countries. In the United States, the Imperial system is still used. It is based on the Roman Empire's system, which considered one foot to be the length of a human being. This means that the same tool in metric units won't fit an Imperial nut.

The TORX(r) Drive System was invented by Camcar Textron in 1967. It was designed to provide an alternative to the slotted-head screwdrivers of the day. The patented system is trademarked by Acumen Intellectual Properties, LLC. Other manufacturers often use the Torx name to promote their products. Here’s a summary of just some of the issues associated with various typical, commonly used drive systems. Hex Drive Torx is an innovative fastener system designed to overcome the shortcomings of traditional screw fasteners. Unlike other screwdrivers, Torx fasteners are made to be resistant to cam-out. This is a type of tampering that occurs when a torque is applied to a screw that exceeds its limit. The Torx bit creates a round hole to prevent this from occurring.While it’s common to use the terms Torx and star interchangeably, there’s actually a bit of a difference between the two. Much like the Allen wrench, Torx is a trademarked name and refers to a specific brand, whereas star is the generic name (much like hex keys). However, there is a difference beyond just licensing.

The main purpose of the tamper-proof design is to restrict unauthorized access to equipment or devices, especially in places where tampering could be harmful or costly. Torx Ttap What is Ttap Torx?

A tamper-proof Torx screw requires a specialized wrench or driver bit with a central hole to accommodate the screw’s center post, deterring unauthorized removal. Hex bolts and nuts have that problem, Allen bolts, which are in internal hex, have that problem. There is a fastener that doesn’t have that problem. Torx. Is that an SAE T55 Torx or is that a metric T55 Torx? Nope, it’s just a T55 Torx. The fasteners are used for both metric and SAE threads. The graduations between Torx sizes make them pretty easy to eyeball as well. Torx fasteners and drivers have been around since 1967, when the six-pointed star pattern was invented by Bernard Reiland at Camcar and patented in 1971. could happen on cheap fasteners. Motorcyclists have been using them for years, as the exterior of many bike have Phillip head fasteners, and one likes to keep them looking good. As both a motorcyclist and an avid classic car collector, these or the only tools I use on my machines for Phillip head fasteners. Have you noticed that the effective cross-sectional size of Torx Plus is larger than the regular Torx profile? Compatibility The angular geometry of the Torx Plus means that the fastening tool fits far more securely in the screw head.