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The VALUE COLLECTION S 623 is a rubber tap collet designed to hold taps securely during threading operations on CNC machining centers, tapping heads, and compatible toolholding systems. With a decimal collet size of 0.9055 inches (23.00 mm), it accommodates taps ranging from 7/8 inch to 1-1/8 inch. The rubber construction provides torsional flexibility, allowing the collet to absorb minor misalignment between the tap and the threaded hole, which helps reduce tap breakage and extend tool life. Machinists and toolroom technicians working in production or job-shop environments install this collet as part of a standard tap collet chuck assembly.
This collet is suited for use in tapping operations on ferrous and non-ferrous workpieces where consistent thread quality is required. It is configured without through-coolant and without tension tap functionality, making it appropriate for standard compression-style tapping setups. The 7/8 inch to 1-1/8 inch tap size range covers a broad selection of common inch-series taps used in general machining, maintenance, and repair applications.
Designed for use with tap collet chuck systems that accept a 0.9055 inch collet bore. Verify collet chuck series compatibility before installation, as collet systems are not universally interchangeable across manufacturers.
Installation is performed by qualified machinists or toolroom technicians. Ensure the spindle or tapping head is fully stopped and de-energized before inserting or removing any collet. Clean the collet bore and chuck taper of chips, oil, and debris before seating the collet to ensure accurate runout. Do not exceed the stated tap size range, as oversized taps will not seat correctly and may damage the collet or chuck body.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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