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Pinch-Clamp RV Dump Valve T-Handle
A replacement T-handle for RV black and grey tank dump valves with an 8 mm stem. It clamps onto the stem with one M4 pinch bolt and a captured M4 nut, so you don't need a pin or set screw. The 110 x 58 x 16 mm grip lies flat on the printer bed so the pulling force runs along the layers, and it has finger scallops and lanyard slots. The 8.3 mm bore is 17 mm deep, with a 4 mm solid entry collar ahead of the split jaw.
Garage Door Emergency Release T-Handle
A red replacement for the T-handle on a sectional garage door opener's emergency-release cord. It has a 110 mm grip with finger scallops and a 50 mm stem. The cord runs through a 45° diamond channel that fits rope up to about 6.7 mm (the usual 5–6 mm opener cord). You can anchor it with a knot in the open 16 mm pocket, lock it with an M4 self-tapping pinch screw, or use both. The part prints flat so the pull load runs along the layers instead of across them.
Hex Key T-Handle Driver Bar
A 116 x 22 x 20 mm fluted grip bar with seven blind hex sockets — 2, 2.5, 3, 4, 5, 6 and 8 mm across flats, each 15 mm deep with 0.25 mm fit clearance — that converts any loose metric L-key into a T-handle driver for fast spinning and real palm torque. Six finger flutes give grip, and a 5.5 mm hole at the end hangs it on an M5 screw or pegboard hook.