BORKA BTK-E1 STD CONFIG ADJ TORQUE DRIVER W/EXT

The Pro-Shot Borka BTK-E1 is an extended-configuration adjustable torque driver kit built for armorers, precision shooters, and serious gun owners who need reliable fastener control in hard-to-reach places. This isn't a generic multi-tool—it's a purpose-built system that starts with a calibrated torque driver (±4% accuracy) and adds three specialized 4-inch extended-length bits to reach action screws, optics mounts, and chassis fasteners that standard tools can't access cleanly. Whether you're fitting a scope, tuning a custom rifle, or servicing firearms in the field, the BTK-E1 gives you the precision and reach to do the job right.

The kit's standout feature is its extended bit lineup: a 5/32" ball-end hex bit for Ruger 10/22 action screws, a 3/16" ball-end hex bit designed specifically for Accuracy International chassis systems, and a slim 4-inch extension with a 0.4" diameter that slides into tight channels without binding. All extended bits are forged from premium S2 tool steel, hardened to HRc 58–60, and tipped with ball ends so you can work at angles without losing grip or accuracy. The adjustable torque driver itself is U.S.-made and patent-backed, paired with a compact ratchet handle that accepts 1/4" hex bits and square-drive adapters.

Complete your setup with 29 chrome-plated bits covering hex (inch and metric), slotted, Torx, and Phillips heads, plus adapters, a 2-inch extension, spare high-use Torx bits, a mohair lens brush, a snap-up parts tray that doubles as storage, and a durable Cordura pouch that keeps every piece organized on the bench or in your gun bag. At roughly 1 pound 6 ounces, it's compact enough for the range or shop without sacrificing the depth of tooling serious shooters expect.