56204 Royal ER-40 Ultra-Precision Sealed ER Collet 3/16"

The Royal 56204 (ER-40) features a 0.0002" TIR guarantee and a unique mechanical seal. Built for high-pressure coolant delivery, it eliminates the need for problematic rubber plugs.

• Part Number: 56204
• Range: 0.187" (Nominal Only)
• Accuracy: 0.0002" TIR

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