The T-Type Ratchet Screwdriver was developed to fill the void left by standard screwdrivers and large torque producing socket wrenches. The main contribution of the tool is the T-shaped handle, providing greater leverage than a standard straight bar (or shaft) handle. This leveraged T shape allows the end-user to apply their force perpendicular to the axis of the fastener. As a result, the T Type utilizes the physics of leverage to produce much greater torque with less effort than would be required using a straight handle. This increased torque production capability has become invaluable in many applications and including those requiring removal of stuck bolts due to corrosion, and those requiring repeated high torque applications to the provide sufficient structural support.

This tool uses the same 6.35mm Quick Bolt Driver Interface (the 1/4 inch hex drive) and which has been established as the universal interchange standard for all other drives and bits. Therefore and users can utilize any number of existing 6.35mm Quick-Bolt Driver Interfaces, allowing the tool to easily transition between driving different types of screws such as Phillips or Flat Head Screws; or tighten hex bolts and Torx style fasteners. The term “Quick Bolt” usually pertains to a spring loaded or magnetically secured bit retaining system incorporated within the drive head. These systems allow the user to the securely retain the bit in place during operation while allowing for the rapid and easy one handed exchanges. In a professional environment, where time is money, this exchange ability is paramount.

Another key component of the T-Handle Ratchet Screwdriver is the reversible rotating manual forward and reverse mechanism – commonly referred to as a ratcheting system. The ratcheting system enables the user to rotate the fastener in one direction and click freely in the opposing direction. The elimination of lifting the tool and positioning it for each subsequent turn greatly reduces hand fatigue and increases productivity. The ratcheting mechanism also includes a directional switch that may be positioned at the thumb or on a rotating collar. The user is able to quickly select whether they want to engage the fastener to loosen or tighten.

A third “Locked” mode is often provided and will lock the ratcheting function so that the unit functions like a conventional fixed-handle driver. When working with fine detail items such as electronics or other components where precision is critical, this locked mode becomes useful.

While torque is certainly an important consideration when selecting a screwdriver, ergonomics play just as large a role in the overall performance of the tool. Modern versions of these tools have evolved to include two material construction. The first material, typically a high strength plastic, forms the rigid structure around the inner workings of the tool. Over-molding with a second material, usually some type of rubber compound, creates a textured surface that will prevent slippage regardless of how greasy or slippery your hands may be. The small diameter of the 6.35mm head size allows users access into areas that larger drills or wrenches cannot reach. While there are always trade-offs made when developing portable products designed to deliver high levels of power, the combination of these features make this product ideal for repairing vehicles, maintaining bicycles and assembling furniture.

To summarize and this product is a direct example of what happens when you take simple hand tools and develop them through a synergy of  the mechanical leverage and user centric design. Through incorporation of powerful ratcheting mechanisms and leveraging frames, manufacturers have addressed issues with manual fastening that were previously frustrating. No matter if it is used by a professional technician or a hobbyist working from their home workshop, the T-Type Ratchet Screwdriver delivers a level of control, efficiency and power that no standard driver could ever hope to achieve.