Feature(may vary by option.)

●Production process: high-precision ball CNC machine with numerical control for drilling and tapping, cleaning and polishing
●Ball made of high-quality 304# stainless steel
●M17 x 3 mm x 5 pieces = the diameter of the ball is 17 mm, the hole diameter is 3 mm and the quantity is 5
●The smaller the diameter, the lower the thread depth
●The drill ball is made of stainless steel and has strong practicality.

[M17*7mm*5pcs]

[M17*8mm*5pcs]

Description

Solid stainless steel ball with holes that shows magnetism or weak magnetism, can be used for decorations, teaching experiments, mechanical accessories, hardware accessories, DIY bead bracelets, etc.