Nickel Boron Coated 4-Jaw Self-centering Chuck (P/N
This chuck is identical to P/N 1076 except for an electroless nickel boron coating that has been applied to help prevent wear and corrosion.
This special coating has been applied to all external and internal surfaces of
the chuck (except for chuck jaws), significantly improving the life of the chuck.
This chuck also opens and closes more
smoothly due to the lubrication properties of nickel boron. Other benefits and features of the electroless nickel boron coating
include the following:
Ductile plating with columnar structure
than any other nickel-based coating
Coating uniformity that eliminates post-plate grinding (or burnishing)
properties overall superior to hard chromium
Hardness (68-72 Rc)
coefficient of friction (.044) Teflon™ is .04
coating thickness up to .004”
Accepts dry film lubricants