Value Collection 331-2309 Shell Reamer Arbor 4MT

Product Description

The VALUE COLLECTION 331-2309 is a shell reamer arbor designed to mount and drive shell reamers in machining and metalworking applications. It features a No. 4 Morse Taper (4MT) shank for secure, self-holding engagement in compatible machine spindles and tailstocks. With an overall length of 13 inches, the arbor provides reach and rigidity for precision reaming operations. It accepts shell reamers ranging from 2-1/16 inches to 2-1/2 inches in diameter, covering a practical range for production and job-shop bore finishing work. This arbor is installed and used by machinists, tool-and-die makers, and skilled trade professionals working on manual or CNC-capable lathes and boring machines.

This arbor is suited for use in ferrous and non-ferrous metal boring and finishing operations where a shell reamer must be driven from a Morse taper spindle. Typical applications include bore sizing and finishing on lathes, drill presses, and machining centers equipped with a No. 4 Morse taper socket. The 2-1/16 to 2-1/2 inch diameter range makes it appropriate for medium-to-large bore work in manufacturing, maintenance, and repair environments.

Key Features

• No. 4 Morse Taper (4MT) shank for self-holding fit in compatible machine spindles
• Accepts shell reamers from 2-1/16 inches to 2-1/2 inches in diameter
• 13-inch overall length provides reach for deeper bore operations
• Designed for precision bore finishing in production and maintenance machining
• Single-piece arbor construction for rigidity during reaming cuts

Compatibility

Designed for use with shell reamers ranging from 2-1/16 inches to 2-1/2 inches in diameter and machines equipped with a No. 4 Morse Taper spindle socket.

Installation Notes

Installation is performed by qualified machinists. Before mounting, confirm the machine spindle is a No. 4 Morse Taper and that both the taper shank and socket are clean and free of chips or burrs, as contamination will prevent full seating and can cause runout. Power down and de-energize the machine before inserting or removing the arbor. Use a proper drift and dead-blow mallet for removal to avoid spindle damage.