Value Collection 210-5084 End Mill Holder NMTB50

Product Description

The VALUE COLLECTION 210-5084 is an end mill holder designed for use with NMTB50 taper shank spindles on manual and CNC milling machines. It accepts a 3/4 inch bore and features a 2.75 inch projection with a 1-3/4 inch nose diameter, making it suitable for standard end mill setups where rigid, repeatable tool holding is required. The holder does not include through-coolant capability. With a total indicator runout (TIR) of 0.0004 inch, it delivers the concentricity needed for accurate milling operations. The drawbar thread size is 1-8. Weighing 7 pounds, this is a solid, heavy-duty holder built for production and maintenance machine shop environments.

This end mill holder is intended for metalworking and machining applications where an NMTB50 taper interface is present. It is a practical choice for job shops, maintenance facilities, and production machining operations running knee mills, Bridgeport-style machines, or similar equipment equipped with NMTB50 spindles. The 3/4 inch bore accommodates standard end mill shank sizes commonly used in steel, aluminum, and general-purpose cutting applications. Installation and tool changes are handled by a qualified machinist or toolroom technician.

Key Features

• NMTB50 taper shank for positive spindle engagement on compatible milling machines
• 3/4 inch bore diameter for standard end mill shanks
• 2.75 inch projection provides clearance for typical milling setups
• 1-3/4 inch nose diameter for stable tool support
• TIR of 0.0004 inch for reliable concentricity
• 1-8 drawbar thread size for secure spindle retention
• No through-coolant — suitable for dry or flood coolant applied externally

Compatibility

Designed as an OEM-style end mill holder for milling machines with an NMTB50 taper spindle and a 1-8 drawbar thread. Accepts 3/4 inch shank end mills.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine before inserting or removing the holder from the spindle. Ensure the taper surfaces of both the holder and spindle are clean and free of chips or burrs before seating. Torque the drawbar by hand initially, then tighten according to machine manufacturer guidelines — do not use impact tools on the drawbar.