Sherline 3.1�� 3-Jaw Chuck �C Electroless Teflon Nickel Coated 1040C

Other benefits and features of the electroless nickel boron coating include the following:

- Ductile plating with columnar structure
- Harder than any other nickel-based coating
- Coating uniformity that eliminates post-plate grinding (or burnishing)
- Wear properties overall superior to hard chromium Hardness (68-72 Rc)
- Low coefficient of friction (.044) Teflon? is .04
- Uniform coating thickness up to .004��
- Accepts dry film lubricants