Value Collection 210-3069 End Mill Holder NMTB30

Product Description

The VALUE COLLECTION 210-3069 is an end mill holder designed for use with NMTB30 taper shank spindles. It accepts end mills with a 1/2 inch shank diameter and provides 1.75 inches of projection from the spindle nose. The nose diameter measures 1-1/4 inches. With a TIR of 0.0004 inches, this holder delivers the concentricity required for accurate milling operations in ferrous and non-ferrous materials. The drawbar thread is 1/2-13. This holder is installed by machinists and CNC operators working on vertical mills and machining centers equipped with NMTB30 spindle tapers.

Suited for job shops, toolrooms, and production machining environments, this end mill holder is a direct-mount solution for standard 1/2 inch shank end mills. It is used in manual vertical mills and CNC machining centers with NMTB30 spindle interfaces. The 1.75 inch projection allows adequate tool clearance for typical face milling, slotting, and profiling operations without excessive overhang.

Key Features

• NMTB30 taper shank for direct spindle mounting on compatible mills
• 1/2 inch bore accommodates standard 1/2 inch shank end mills
• 1.75 inch projection for adequate tool clearance in common milling operations
• TIR of 0.0004 inches for consistent concentricity and reduced tool runout
• 1/2-13 drawbar thread for secure spindle retention
• No through-coolant, suitable for dry or external coolant applications

Compatibility

Designed as a direct-fit end mill holder for machining centers and vertical mills equipped with NMTB30 taper spindles and 1/2-13 drawbar threads.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before mounting or removing the holder. Ensure the spindle taper and holder taper are clean and free of chips or oil film before seating. Torque the drawbar according to the machine tool manufacturer specifications for NMTB30 tooling.