Torx bolt interfaces are super precise, reliable, and can handle torque with ease, all of which is why the system is now more widely used for many bike components. What makes these different from whats already out there The combination of professional grade materials and construction, tight tolerance Torx interfaces, sliding T handles, Speed Spinner handle zones, and each tool has strip gripper Torx tool to get stripped or oversized fasteners out.Designed and built specifically for a wide variety of bicycle and general purpose Torx work the THT-1 consists of eight common sizes of professional quality T-Handle Torx wrenches built for speed, efficiency, leverage and a perfect fit. Materials wise, Park opted for a carefully selected of Chrome Vanadium and S-2 tool steels to make these pro-level tools. The T-bar slides (with just enough friction resistance) so the user can change the leverage point, moving the shaft closer to the head of the T-bar Torx tool. Think removing a shallow Shimano T30 chainring bolt where close leverage and control is desired. On the opposite end of the T from the Torx is an integrated Strip-Gripper twisted Torx that makes removal of most bolts with stripped or oversized Torx interfaces fast and easy. Of course the end of the long shaft also features a Torx interface, so you can take full advantage of the Speed Spinner handle on the shaft for longer threaded bolts were speed beats tedium every time.Soon to become your favorite Torx set, the THT-1 includes a handy tool holder that mounts to any vertical surface, including pegboard and solid surfaces (fasteners not included). Working faster and smarter, while having a Strip Gripper removal tool right at hand is ideal for a home or travel mechanic, because when you need one, you need one. Park even color codes the Hex option with anodized blue Speed Spinners, while the Torx options feature a green version for instant recognition.