[SPECIAL DESIGN]: Embedded with an M12 female thread iron insert, the threaded iron insert makes it a lever knob for machine handles.
[DURABLE MATERIAL]: The ball knob is made with phenolic plastic, and the surface is well polished which can offer a comfortable grip feeling, durability, no pits, no burrs on the surface, and flat and smooth.
[EASY TO INSTALL]: Threaded knob, good machine operation handle replacement. This Ball Knob is easy to install and remove and does not require any tools.
[WIDE APPLICATION}: Suitable for general applications, such as drill presses, machine tools, textile machinery, woodworking machinery, printing machinery, light industry mining machinery, ships, lawnmowers, exercise equipment, machinery, valves, spigots, etc.