Experience Precision Tapping Like Never Before

The Desktop Tapping Arm is engineered to solve the most frustrating challenge in aluminum extrusion assembly: crooked tapping and snapped taps. By providing a rigid, 100% vertical guide, this CNC-machined aluminum cantilever system transforms a standard hand drill into a high-precision semi-automatic tapping station. Whether building a complex Voron 3D printer frame or a heavy-duty sim racing rig, this tool ensures every thread is perfect, every time.

Innovative Dual-Mode Mounting for Ultimate Flexibility

Unlike traditional, bulky industrial tapping machines, the system is designed for the modern maker's workspace. It features two versatile mounting options: a heavy-duty, detachable 0-1.73" (0-44mm) C-clamp for quick attachment, and a dedicated screw-fixed base specifically designed for extra-thick workbenches that exceed the clamp's capacity. By simply choosing between tabletop or side-mount positioning, users can seamlessly switch between vertical tapping and horizontal end-tapping.

Unmatched Compatibility: M2 to M10 & SAE #2 to 3/8"

Equipped with a premium 1/16"-3/8" (1.5-10mm) three-jaw chuck, this tapping jig offers a broad clamping range that meets the needs of both precision electronics and structural engineering. It perfectly accommodates metric taps from M2 to M10 and standard SAE sizes from #2 to 3/8". This wide compatibility makes it an essential tool for specialized tasks, from precision micro-tapping on custom CNC parts to batch tapping on 2020, 4040, and 8020 series extrusions.

The Professional Alternative for Every WorkshopEliminate the need for expensive, space-consuming industrial radial arm tapping machines. delivers industrial-grade accuracy in a compact, desktop-friendly form factor. The smooth-gliding cantilever arm eliminates lateral stress, protecting expensive taps from snapping and preventing "stripped threads" on costly aluminum materials. It is the definitive "Tap Saver" for hobbyists, small studios, and home garage workshops.

A Versatile Solution for Every DIY Project

Technical Specifications:


【PERFECT 90° VERTICAL TAPPING & NO MORE BROKEN TAPS】The CNC machined aluminum tapping arm provides an absolute 90-degree vertical guide. It eliminates lateral stress during operation, perfectly protecting the expensive taps and aluminum extrusions. Even beginners can achieve high-precision tapping without the frustration of stripped threads or ruined parts.
【ESSENTIAL FOR ALUMINUM EXTRUSION & MULTI-SCENE BUILDS】An indispensable tool for assembling Voron 3D printers, sim racing rigs, custom workbenches, camera sliders, reptile enclosures, and aquarium frames. Perfectly compatible with 2020, 4040, and 8020 series extrusions for blind joint connections and end tapping, drastically boosting overall build efficiency and precision.
【TURN YOUR HAND DRILL INTO A SEMI-AUTO TAPPER】Say goodbye to tedious manual tap wrenches! Equipped with a premium 1/16"-3/8" (1.5-10mm) three-jaw chuck, this tapping jig perfectly accommodates standard tap sizes from M2 to M10 (and SAE #2 to 3/8"). Simply attach your hand drill to achieve fast, smooth, and effortless batch tapping, making complex frame assemblies or precision micro-tapping an absolute breeze.
【DUAL MOUNTING MODES & HORIZONTAL/VERTICAL TAPPING】Overcome traditional drill press limits! Features a 0-1.73" (0-44mm) C-clamp, plus a screw-fixed base designed for extra-thick workbenches where the clamp won't fit. Easily switch between vertical and horizontal tapping by mounting the bracket on the tabletop or desk side.
【THE ULTIMATE DESKTOP ALTERNATIVE TO BULKY MACHINES】Why spend thousands of dollars on massive, space-consuming industrial tapping arms? This compact desktop bracket delivers professional-grade accuracy at an unbeatable value! Designed specifically for limited workbench space, it is lightweight, highly affordable, and the perfect solution for makers, small studios, and home garage workshops.
【PRO-LEVEL TAPPING GUIDELINES】For the cleanest threads and zero broken taps, follow these 4 tips: Hold the drill with both hands for stability. Apply gentle pressure; let the tap cut naturally, never force it. Use tapping fluid to cut friction and wobble. Run at low speed (RPM). Master these for a buttery-smooth cut!