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The REGO-FIX 1216.03000 is an ER16 precision collet designed to hold 3 mm diameter tooling in ER16-compatible collet chucks. It delivers a total indicator runout (TIR) of 0.0002 inches (0.000240 inches measured), making it suitable for applications where concentricity and tool life are critical. The overall length is 27.5 mm and the overall diameter is 17 mm. This collet is installed by machinists and tooling technicians on CNC machining centers, milling machines, and drilling equipment equipped with ER16 toolholders.
This collet is used in light to medium-duty machining operations where a 3 mm shank tool must be held with high repeatability. Typical applications include precision drilling, milling, reaming, and tapping in both production and job-shop environments. The ER16 series is one of the most widely adopted collet standards in CNC and manual machine tooling setups.
Designed as a direct-fit replacement for ER16-standard collet chucks accepting a 3 mm bore size. Verify chuck manufacturer specifications before installation to confirm ER16 collet seat geometry.
ER collets are installed and removed by qualified machinists using the appropriate ER16 collet nut and spanner wrench. Ensure the spindle and chuck are fully powered down and locked out before handling tooling. Clean the collet seat and collet exterior of any chips or coolant residue before seating to maintain rated TIR. Do not exceed the collet clamping range; using a collet outside its specified bore size will compromise grip force and runout performance.
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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