Value Collection 210-5085 End Mill Holder NMTB50

Product Description

The VALUE COLLECTION 210-5085 is a solid end mill holder designed for CNC milling machines and machining centers using the NMTB50 taper shank standard. It accepts end mills with a 7/8 inch hole diameter and provides a 2.75 inch projection from the spindle face, positioning the cutting tool at the correct working depth. The nose diameter measures 1.875 inches. With a total indicator runout (TIR) of 0.0004 inch, this holder delivers the concentricity required for accurate milling operations. It is installed by machinists and CNC toolroom technicians as part of a standard tooling setup on vertical or horizontal machining centers.

This end mill holder is suited for production machining environments where NMTB50 spindle tooling is specified. The 1-8 drawbar thread engages the machine spindle drawbar for secure retention during cutting. The 2.75 inch projection accommodates typical end mill shanks without excessive overhang, supporting stable cuts in ferrous and non-ferrous materials. This holder is appropriate for job shops, toolrooms, and production floors running NMTB50-compatible machining centers.

Key Features

• NMTB50 taper shank for direct spindle mounting on compatible machining centers
• 7/8 inch hole diameter accepts standard end mill shanks
• 2.75 inch projection positions the cutting tool at the correct working reach
• 1.875 inch nose diameter provides a rigid tool-holding body
• TIR of 0.0004 inch supports precise, repeatable concentricity
• 1-8 drawbar thread engages standard NMTB50 machine spindle drawbars

Compatibility

Designed as an OEM-style replacement and standard tooling option for machining centers with NMTB50 taper spindles requiring a 7/8 inch end mill holder.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine before changing tooling in the spindle. Ensure the taper and spindle bore are clean and free of chips or debris before seating the holder. Torque the drawbar according to the machine manufacturer specifications, not the holder specifications.