Value Collection 230-7202 Collet Chuck 1 in NMTB30

Product Description

The VALUE COLLECTION 230-7202 is a full grip collet chuck designed for milling and machining operations where accurate tool holding is critical. It accepts collets up to 1 inch capacity and mounts via an NMTB30 taper shank, making it compatible with standard NMTB30 spindle noses found on vertical milling machines and machining centers. Total Indicated Runout (TIR) is 0.0006 inches, supporting close-tolerance work where concentricity directly affects surface finish and tool life. Machinists and toolroom technicians install this chuck as part of a workholding or toolholding setup in manual or CNC milling environments.

This collet chuck is suited for production and job-shop milling applications where a full grip collet system is preferred over end-mill holders or side-lock style chucks. The full grip design contacts the tool shank along its full circumference, reducing vibration and improving pull-out resistance during cutting. It is a practical choice for shops running NMTB30-equipped Bridgeport-style mills or equivalent knee mills and light-duty vertical machining centers that use the NMTB30 spindle standard.

Key Features

• 1 inch maximum collet capacity accommodates a wide range of collet and tool shank sizes
• Full grip collet system provides uniform radial clamping force around the tool shank
• NMTB30 taper shank for direct mounting to NMTB30 spindle noses
• 0.0006 inch TIR for consistent concentricity in close-tolerance milling work
• Weighs 2.96 pounds, a manageable weight for bench and spindle handling

Compatibility

Designed for use with NMTB30 spindle nose machines. Compatible with full grip collets up to 1 inch capacity. No additional specific model compatibility data was provided in the product information.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with taper shank toolholding systems. Power down and lock out the machine spindle before mounting or removing the chuck. Ensure the taper shank and spindle bore are clean and free of chips or burrs before seating the chuck to achieve proper contact and safe retention. Follow the machine tool manufacturer's draw bar torque and retention specifications for the NMTB30 interface.