1 Mod Pinion Gear Spur Gears 10-19 Teeth 4-10mm Bore No Step/Blue Nylon/D-hole Bore & Amount (Pcs):6x5.5mm & 1 In most US residential plumbing:

In most US residential plumbing: 1/2" is standard for faucets

while the core remains at a lower hardness (approximately 20–30 HRC) to retain toughness and resist shock loads

Please check the variant option label for the bore size of your selected tooth count before ordering

Do not apply sealant to the female threads on this adapter

🔄Removable and re-sealable — the threaded connection can be disassembled for maintenance

1 Mod Pinion Gear Spur Gears 10-19 Teeth 4-10mm Bore No Step/Blue Nylon/D-hole Bore & Amount (Pcs):6x5.5mm & 1 In most US residential plumbing:1 Mod Pinion Spur Gears Precision Motion Control for CNC, Robotics & Automation When your CNC router, 3D printer, or robotic arm demands consistent torque transfer without backlash, choosing the wrong gear module or bore size can derail an entire build. These 1 Module (1M) pinion spur gears are engineered for makers, automation integrators, and small batch manufacturers who need reliable, dimensionally accurate components that drop straight into their