Borka Tools 4in lbs. Precision Torque Limiter PTL-4

The Borka Tools 4 in. lb. Precision Torque Limiter is built for the most delicate fastening tasks where absolute control isn’t optional—it’s critical. When you’re working with small screws on optics, electronics, or precision firearm components, even a slight over-tightening can cause damage or throw off alignment. This torque limiter ensures you stay within exact specifications, delivering consistent, repeatable results every time.

As part of the trusted Borka Precision Torque Limiters lineup, this model is factory-calibrated and certified for accuracy. Each unit features its own individual serial number along with calibration-certified performance, giving you confidence that every application meets tight tolerance standards. That level of precision helps prevent stripped threads, crushed components, and unnecessary wear, especially in sensitive applications where margins are minimal.

With its 4 inch-pound rating, this limiter is ideal for ultra-light torque requirements. It excels in situations where finesse matters most, such as tightening small optic screws, mounting accessories, or working on fine mechanical assemblies. Instead of relying on feel, you’ll get exact torque application that protects both your equipment and your results.

Versatility is built into its design. The 3/8" square drive, combined with the 1/4" female hex adapter, allows it to work seamlessly with a wide range of bits and drivers. Whether you’re using specialized tools or standard hex bits, this torque limiter integrates easily into your setup without complication.

Compact and lightweight, it’s designed for convenience in the field or at the bench. It fits easily into a tool roll or range bag, making it accessible whenever precision work comes up. Despite its small size, it’s constructed for durability, built to withstand repeated use without losing accuracy or reliability.

Trusted by professionals, competitive shooters, and military personnel worldwide, the Borka Tools 4 in. lb. Precision Torque Limiter delivers dependable control where it matters most. It’s a straightforward, no-nonsense tool that helps you protect your gear while maintaining the highest level of precision in your work.

Small torque, serious accuracy, available at SMKW.