Two Pack 6.35mm To 8mm Bore Rigid Shaft Coupler With M4 Set Screws Stainless Steel For 3D Printers Motors And RC Hobby Projects Cars Planes And Boats 14mm Diameter By 22mm Length

Two-Pack 6.35-8mm Bore Rigid Shaft Couplers, M4 Screws
✔️ Rigid stainless steel shaft couplers: 14mm dia (0.55 in), 22mm long (0.87 in), bore 6.35-8mm (0.25-0.31 in)

These rigid shaft couplers are stainless steel, built to handle high torque in demanding hobby setups. This two-pack is ideal for connecting motors to drive shafts in 3D printers, CNC machines, robotics, and other DIY drive systems. Includes M4 set screws and an M4 hex wrench for quick, tool-friendly installation.

✅ Size: 14 mm diameter, 22 mm length
✅ Bore range: 6.35-8 mm (0.25-0.31 in)
✅ Material: stainless steel, corrosion resistant
✅ Screws: M4 set screws included (8 pcs) and M4 hex wrench
✅ Includes: 2 pieces per pack

💡 What is the best use case for a rigid shaft coupling in hobby motors?

This handy piece helps connect two shafts with solid alignment and strong torque transfer in small drive systems. - Handy for 3D printers and CNC machines to link stepper motors to drive shafts - Fits 6.35-8 mm bore and uses M4 screws for secure clamping - Stainless steel construction resists corrosion in workshop environments - Two-pack with included M4 wrench and screws makes on-site assembly quick