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Description
Sherline 3/16" (.1875) WW Collet
Ensures precise centering and grip
Accommodates max diameter of 3/16"
Features maximum runout of .002" or less
Available in inch and metric sizes
Manufactured to standard WW specifications
The Sherline 3/16" (.1875) WW Collet provides a precise and efficient method for mounting cylindrical parts or bar stock in a lathe, ensuring high centering accuracy. This collet functions as a small, precision 3-jaw chuck that fits into a specially designed tapered adapter within the headstock. A drawbar threads into the collet's backside, drawing it into the adapter, which causes the jaws to close and securely grip the part to be machined. The collet is designed to accommodate a small range of diameters, approximately ±.001″ (.02mm), ensuring precise part mounting.
WW collets are distinct from milling collets due to their through-hole design, allowing stock with a maximum diameter of 3/16″ or 4.5mm to pass entirely through. Collets larger than this diameter are referred to as "pot" chucks and are not bored through, being only .260″ deep. The collet's maximum runout is .002″ or less, and when the WW collet adapter is properly trued, it operates with optimal accuracy.
Sherline collets are manufactured to standard WW specifications, with a shank diameter of .312-.313 and a .275-40 thread. It is crucial to verify compatibility with other manufacturers' WW collets to ensure they fit the Sherline adapter. The collets are available in inch sizes by 64ths of an inch from 1/64″ to 5/16″ and in metric sizes from .3 mm to 8.0 mm by .1 mm increments.
