Feature

●These thread balls are primarily used to fill printer ink and are used in combination with screws to punch ink cartridges
●Screw ball is standard M4 screw hole. Reamers are not only convenient, but also more accurate
●The drill ball is made of stainless steel, heat resistant and corrosion resistant, very practical
●Kit includes 20 M4 thread balls for easy operation and easy replacement
●These drill screw balls are suitable for the magnetic ball joint system of the Coselle Delta 3D printer


Description

Specifications:

Item Type: M4 Thread Ball
Material: Stainless Steel
Diameter: approx. 10mm/0.4"
Aperture: Approx. 3.8mm/0.15in (approx. M4)
Purpose: Drilling
Color: Silver white

Package List:

20 x M4 Thread Balls