20Pcs M4 Threaded Magnetic Ball Joints for 3D Printers - Industrial Strength Fasteners for Robotics, CNC Machines & DIY Projects | Perfect for Building Modular Structures & Mechanical Assemblies

mothers day gifts Feature:1. These threaded balls are mainly used to fill the ink in the printer, and are used in conjunction with the screw to punch the ink cartridge.2. The threaded ball is a standard M4 threaded hole. Reaming is not only convenient, but also more precise.3. The drilling ball is made of stainless steel, heat‑resistant and corrosion‑resistant, and has strong practicability.4. The kit contains 20 M4 Threaded Balls, which are convenient to operate and easy to replace.5. These drilling threaded balls are suitable for kossel 3D printer magnetic ball joint system.Specification:Item Type: M4 Threaded BallMaterial: Stainless SteelDiameter: Approx. 10mm / 0.4inAperture: Approx. 3.8mm / 0.15in(about M4)Purpose: DrillingColor: Silver white Package List:20 x M4 Threaded Ball

The drilling ball is made of stainless steel, heat‑resistant and corrosion‑resistant, and has strong practicability.

The threaded ball is a standard M4 threaded hole. Reaming is not only convenient, but also more precise.

These drilling threaded balls are suitable for kossel 3D printer magnetic ball joint system.

The kit contains 20 M4 Threaded Balls, which are convenient to operate and easy to replace.

These threaded balls are mainly used to fill the ink in the printer, and are used in conjunction with the screw to punch the ink cartridge.