The Borka Tools BTK-E1 (brand part no. BTKE1) takes the acclaimed Standard Configuration Kit and expands it for added versatility, longer reach, and specialized applications, built for professional armorers, precision shooters, and serious enthusiasts who demand both accuracy and flexibility. Alongside everything in the Standard Configuration, it adds three purpose-built, extended-length components for hard-to-reach fasteners: a 5/32-inch ball-end hex bit for deep-access action screws like Ruger 10/22 V-block clamp screws, a 3/16-inch ball-end hex bit engineered for Accuracy International Chassis Systems action screws, and a slim 4-inch bit extension for tight channels. All extended bits are crafted from premium S2 tool steel, hardened to HRC 58-60.

Key Specifications

• Includes everything in the Standard Configuration Kit, plus three extended-length components.
• A 5/32-inch ball-end hex bit, 4 inches long, reaches deep-access screws like Ruger 10/22 V-block clamp screws.
• A 3/16-inch ball-end hex bit is engineered specifically for Accuracy International Chassis Systems (Gen 1 and Gen 2) action screws.
• A slim 4-inch bit extension, just 0.4 inches in outer diameter, clears tight channels with ease.
• Extended bits are S2 tool steel hardened to HRC 58-60 with ball-end tips for angled access.
• Total kit weight is 1 pound 6 ounces, made in the USA.

Frequently Asked Questions

What does the E1 add over the Standard Configuration? Three extended-length, ball-end hex bits and a slim bit extension for reaching deep or angled fasteners like AICS and Ruger 10/22 action screws.

What is the torque accuracy? A true 4 percent calibration accuracy, matching the Standard Configuration Kit.

Buy the Borka Tools BTK-E1 Extended Torque Driver Kit

Extra reach and versatility for demanding precision-shooting setups, this kit is ready for serious work. Order it from our Pro-Shot gunsmithing tools lineup and our Lubbock, Texas team will get it shipped quickly.