-Anti-scratch scratching board AND cat bed in oneSherline 3/32" (.0938) WW Collet

• Sherline 3/32" (.0938) WW Collet
• Ensures high centering accuracy
• Accommodates narrow diameter range
• Allows stock to pass through
• Offers maximum runout of .002"
• Compatible with Sherline adapter

The Sherline 3/32" (.0938) WW Collet provides an efficient and precise method for mounting cylindrical parts or bar stock in a lathe. This collet functions as a small, precision 3-jaw chuck that fits into a specially designed tapered adapter within the headstock. The mechanism involves a drawbar threading through the headstock and into the collet's backside, drawing it into the adapter, which in turn closes the jaws to securely grip the part being machined. This system ensures high centering accuracy, although each collet size accommodates only a narrow range of diameters.

WW collets are distinct from milling collets due to their through-hole design, allowing stock to pass entirely through. The maximum diameter for stock passing through is 3/16" or 4.5mm. Collets larger than this diameter are known as "pot" chucks and are not bored through, being only .260" deep. The collet's runout is minimal, with a maximum of .002" or less, ensuring precision when the WW collet adapter is properly trued.

Sherline collets are logically numbered, with inch collets starting with part number 1160 followed by size in 64ths of an inch, and metric collets beginning with 1178 followed by size in 0.1 mm increments. These collets are manufactured to standard WW specifications but are not hardened. It is crucial to verify compatibility with Sherline's adapter when using WW collets from other manufacturers.