System | The drilling ball is made of stainless steel heat resistant and corrosion resistant and has strong |
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Practicability | The threaded ball is a standard M4 threaded hole Reaming is not only convenient but also more |
Precise | 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 |
20Pcs M4 Threaded Ball, Threaded Tapping Ball Professional Drilling Steel Beads for 3D Printer Magnetic Joints Review
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