Key Specification/Special Feature
·Material: 316L Stainless Steel 
·Shaft thickness(mm): 1.0, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0, 6.5, 8.0, 10.0
·Length(mm): 6, 8, 9.5, 11, 13, 16, 19, 22, 26, 32, 35, 38, 42, 50, 60, 64
·Ball(Spike) Sizes(mm): 2, 3, 4, 5, 6, 8, 10
·External Threading at the length of 1.5~2.0mm 
·Mirror Brightening Polish