350mm Ball Screw RM1204 SFU1204 End Processing Kit With Metal Ball Nut And BK10 BF10 End Supports For DIY CNC Machines And 3D Printers 12mm Diameter Lead 4mm Low Friction Low Noise Extended Service Life

350mm RM1204 ballscrew kit with 1 set BK10/BF10 ends
✔️ 12 mm dia, 4 mm lead, 350 mm length; includes BK10/BF10 ends

This precision ballscrew kit delivers smooth, low-friction linear motion for CNC machines, 3D printers, and DIY rigs. It combines a RM1204 screw with a ball nut, BK10 and BF10 end supports, and a coupling for quick mounting in hobby projects.

✅ Ball screw diameter 12 mm
✅ Lead / pitch 4 mm
✅ Total length 350 mm (end processing)
✅ Includes ball nut, BK10 and BF10 end supports, and coupling

💡 What is a 12 mm ballscrew with 4 mm lead used for in CNC setups?

This handy piece is designed for precise linear motion in hobby CNC machines and DIY projects.

• High-precision motion for CNC routers, 3D printers, and automation
• Low friction operation reduces heat and power draw
• Includes ball nut, BK10/BF10 end supports, and coupling for ready mounting