Milwaukee doesn't offer a side handle for the 3404 and 3403 M12 drills, so we created one.
Unlock the full potential of your M12 drill. Avoid injuries or discomfort from unexpected torque jolts, even when using low gear, max clutch, and humongous hole saws. The torque bottleneck is no longer your wrist strength, but the battery power output. Use the High Output XC5.0 battery for max torque.
This side handle utilizes and includes the handle stick from Milwaukee's 42-62-0010 side handle, which was designed for an older M18 drill. The clamping jaws are replaced with new ones contoured specifically to clamp securely onto the 3404/3403 drill's body. They are 3D-printed from solid carbon fiber polycarbonate composite (very strong).
The handle can be installed and removed with one hand. Simply put it on top of the drill and twist the handle to tighten. The anti-rotation screw keeps the jaws aligned, and the return spring naturally separates the jaws when you release it from the drill.
Now ambidextrous: we've revised the design to let you put on the handle either leftward or rightward. But if it's pointing rightward, 2nd gear is inaccessible because the shaft blocks the speed switch.
Please note: the handle stick itself is sourced open-box or used from the open market.