Black Friday Special

One FREE Spindle Liner with every spindle liner purchase. Free Shipping in the USA ONLY

Liner specifications will be gathered after purchase. Made to order, please allow 2-3 weeks for liner delivery.

*Lathe spindles up to 4"only. Please contact before purchase if larger.

Sale Period11/25-12/2

The Gen 2 has great new features:

• Interchangeable with other same size chucks (no longer is dependent on bore size)
• Faster collet changes with our new detent feature.
• Improved style and coolness
• The new collet housing is interchangeable with other chuck sizes. Order one complete set for your main machine then add an additional set of jaws for a different size chuck on a different machine! Buy additional jaw sets HERE.

The Nub Tools CNC Collet Chuck System, also known as a "Master Jaw System", is for CNC power chucks.  A cost effective and efficient alternative to a standard collet chuck that eliminates the need to remove your chuck from the machine. This system provides a positive stop-dead length for repeatable part lengths when using a collet workstop. Installation is as fast and easy as installing a set of soft jaws. The ability to switch workholding with standard jaws to running collets in just minutes will skyrocket your shop's productivity.  *A total runout average of .001" - .003" can be expected out of the box with a chuck in good condition and quality collets. 

Find the collet system that matches your specifications.  If you don't see matching specification for your chuck, please Contact Us to determine the correct system needed.

*T-nuts and jaw mounting bolts not included.

*Run out is measured with a 2" long pin, 1" hang out. Proper material support with long bars is crucial. Your collet jaws can be skim cut to be true to your machine for greater accuracy. Instructions provided.