Value Collection 219-8448 Milling Machine Arbor NMTB40

Product Description

The VALUE COLLECTION 219-8448 is a Style A milling machine arbor with an NMTB40 taper shank, designed for use in horizontal and vertical milling operations requiring a secure, concentric tool-holding interface. The arbor measures 1.25 inches in diameter and 18.93 inches in overall length, providing substantial reach for gang milling setups or multi-cutter arrangements. The taper shank seats into NMTB40 spindle receivers, and the 5/8-11 drawbar thread locks the arbor firmly during cutting. An arbor spacer is included. This component is installed by machining technicians and tool room operators working with manual or CNC knee mills and vertical machining centers equipped with NMTB40 spindle tapers.

This arbor is suited for production shops, tool rooms, and maintenance machining environments where repeatable, rigid cutter mounting is required. The Style A configuration features a straight cylindrical body with a shoulder and nut arrangement, with a shoulder-to-nut length of 12 inches. This length accommodates multiple spacers and cutters along the arbor body, making it appropriate for straddle milling and similar multi-pass operations on ferrous and non-ferrous workpieces.

Key Features

• NMTB40 taper shank for direct spindle mounting in compatible machines
• 1.25-inch arbor diameter with 18.93-inch overall length for extended cutter reach
• 12-inch shoulder-to-nut length accommodates multiple cutters and spacers
• 5/8-11 drawbar thread for positive spindle retention during milling
• Style A design with included arbor spacer for setup flexibility
• Weighs 13 pounds for stable, low-vibration cutter support

Compatibility

Designed for use with milling machines equipped with NMTB40 taper spindles and a 5/8-11 drawbar thread. Verify spindle taper and drawbar specification against machine documentation before installation.

Installation Notes

Installation should be performed by a qualified machining technician. Power down and lock out the machine spindle before seating or removing the arbor. Confirm the spindle bore and taper are clean and free of chips or burrs before inserting the shank. Torque the drawbar according to the machine manufacturer's specification and seat the arbor spacers and cutter locknut securely before resuming operation.