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The CENTAUR 70036 is a standard single angle collet in the TG/PG 100 series, designed to grip cutting tools and workholding tooling with high concentricity in CNC machining centers, lathes, and milling machines. It accepts a 0.6406-inch (41/64 inch) bore diameter and holds a total indicated runout (TIR) of 0.0005 inches, making it suitable for precision machining applications where tool deflection and runout must be tightly controlled. The overall body diameter measures 1.38 inches with an overall length of 2.38 inches. Machinists and toolroom technicians install this collet into compatible TG/PG 100 collet chucks and toolholding systems.
This collet is used in precision machine shop environments, including both production and job-shop settings. The TG/PG 100 series is a widely adopted collet standard in CNC and manual machining operations for milling, drilling, reaming, and tapping. It is appropriate for light to medium material removal where precise tool location is required. The 0.6406-inch bore suits standard fractional and close-decimal shank cutting tools of that size.
Designed as an OEM-style replacement and standard fit for TG/PG 100 series collet chucks and toolholding systems used in CNC and manual machining equipment.
Installation should be performed by a qualified machinist or toolroom technician. Always power down and lock out the machine spindle before inserting or removing the collet from the chuck body. Ensure the collet bore and chuck taper are clean and free of chips or coolant residue before seating to avoid false runout readings. Do not exceed the collet bore rating by forcing an oversized tool shank into the collet.
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