Birchwood Casey TRQL Torque Limiter Set 12 Pieces

The Birchwood Casey TRQL Torque Limiter Set is a 12-piece kit engineered for shooters and gunsmiths who need precise, controlled fastening on firearms. Built on Birchwood Casey's 70+ year reputation for reliability, this torque limiter set takes the guesswork out of scope rings, action screws, and other critical firearm adjustments where over-torquing can strip threads or damage components. Whether you're mounting optics, adjusting triggers, or performing field repairs, having the right tool prevents costly mistakes and keeps your guns running safe and true.

The kit centers on a ratcheting T-handle driver paired with five preset torque limiters calibrated to 15, 25, 35, 45, and 65 inch-pounds—the most common fastening specs in gunsmithing and field work. That flexibility means one set handles everything from delicate scope base screws to heavier action jobs. The 12-bit assortment covers the fastener types you'll actually encounter: six hex bits, four Torx bits, one flat-head bit, and one Allen bit. A 1/4-inch drive socket adapter and 1/2-inch socket round out the kit, giving you options beyond the standard bits.

Everything packs into a zippered case, making this a natural grab for the range bag, truck toolbox, or gunsmithing bench. No need to guess or cross your fingers on torque specs again—just select the limiter that matches your fastener, and the tool stops when you've hit the right tension. It's a small investment that can save you from stripped receivers, misaligned optics, and frustration in the field.

Key Features

• Five preset torque limiters (15, 25, 35, 45, 65 in-lbs) covering standard firearm fastening specs
• Ratcheting T-handle driver for controlled, ergonomic fastening
• 12-piece bit set: 6 hex, 4 Torx, 1 flat, 1 Allen for common fastener types
• 1/4-inch drive socket adapter and 1/2-inch socket for expanded application
• Portable zippered case for range, truck, or workbench storage

Specifications

Frequently Asked Questions

What torque specs are included in this set?

The TRQL kit includes five preset torque limiters set to 15, 25, 35, 45, and 65 inch-pounds. These cover the most common fastening torques used in firearm assembly, scope mounting, and trigger adjustments.

What kinds of fasteners can I use this with?

The 12-piece bit assortment includes six hex bits, four Torx bits, one flat-head bit, and one Allen bit, covering the fastener types typical in firearms work. The 1/4-inch drive socket adapter and 1/2-inch socket provide additional flexibility for other fastening applications.

Is this good for mounting scopes and rings?

Yes. The preset torque limiters and ergonomic T-handle make it ideal for mounting scope bases and rings, where precise torque prevents damage to actions and ensures reliable zero.

What's included in the case?

The kit ships with a zippered carrying case containing the ratcheting T-handle driver, five preset torque limiters, all 12 bits, the 1/4-inch drive socket adapter, and the 1/2-inch socket.