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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.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.
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