Torx screwdriver

Torx Screwdriver: Everything You Need to Know About the Star Head

If you have ever worked on a modern car, a computer, or a smartphone, you have likely encountered a screw with a 6-point star pattern. This is known as a Torx screwdriver. In this guide, we will explore the torx screwdriver shape, its unique benefits, and why it has become an industry standard.

1. What Does a Torx Screwdriver Look Like?

A Torx screwdriver is easily identifiable by its unique tip. Unlike the cross-shape of a Phillips or the single line of a slotted driver, the torx screwdriver head shape features a perfectly symmetrical 6-point star pattern.

Because of its design, it is often referred to by DIYers as the 6 sided screwdriver. If you have ever asked, “what are the star screwdrivers called?“—the technical answer is Torx (or Star drive).

2. The Science Behind the Torx Drive

The Torx drive system was created to overcome the “cam-out” problem found in Phillips screwdrivers.

  • High Torque: The torx screwdriver shape allows for much higher torque transfer without the tool slipping out of the screw head.

  • Durability: Because the force is distributed across six points, both the screw and the torx driver last much longer without stripping.

3. Torx Driver Sets and Sizes

When looking for torx driver sets, you will notice they are sized using a “T” followed by a number. Selecting the right size is crucial to maintain the integrity of the star pattern.

Common Torx Sizes Chart

  • T5 – T10: Small electronics, laptops, and hard drives.

  • T15 – T25: Household appliances and light construction.

  • T30 – T50: Automotive repairs and heavy machinery.

4. Security Torx vs. Standard Torx

While a standard torx screwdriver has a solid star tip, you may sometimes see a version with a small hole in the center. This is called a Security Torx. It is designed to fit screws that have a small pin in the middle, preventing standard star drivers from being used.

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