Hardinge is the largest manufacturer of chucks, precision collets, and workholding systems in the world.
They specialize in spindle tooling solutions for milling, turning, grinding, assembly and high-production operations - supporting many market applications and industries including automotive, construction, energy, tool and die, aerospace, medical, and many others.
In this video they feature a range of their products - including their high precision collets.
Amazon.com has quite a few collet chucks and accessories at its online store in the tools section. Most of the items on offer are for smaller applications. If anything here catches your interest, just click the links for more information:
Special Chuck Fits Cordless Screwdrivers for Slow Speed Drilling. Also works as an adapter for your oversized drill chuck, quickly converting it for precise drilling with micro size bits. Features: Drop forged steel 1/4" easy snap-in hex shank Easily locks onto and releases drill bits Allows hex drive power tools to use conventional drill bits
Dremel 3/32" Collets Provides the optimal grip for bits offered for the Dremel rotary tool line and Heavy-Duty Flex-Shaft Tool (This collet is not suitable for the #236 handpiece)
Dremel1/32" Collets Provides the optimal grip for bits offered for the Dremel rotary tool line and Heavy-Duty Flex-Shaft Tool (This collet is not suitable for the #236 handpiece)
Dremel Quick Change Collet Nut Kit Allows you to quickly change collets to accept bits with shanks of 1/32" to 1/8". Includes 1 Each #480, #481, #482 and #483
The Indispensable Collet Chuck
The collet is a particular type of chuck commonly found on lathes, milling machines, precision grinders and wood routers.
It is more accurate and precise than a self centering chuck, and is much quicker to setup.