Value Collection 331-2106 Shell Reamer Arbor No. 6 3MT

Product Description

The VALUE COLLECTION 331-2106 is a No. 6 shell reamer arbor designed to hold and drive shell reamers during precision hole-finishing operations. It features a 3MT (No. 3 Morse Taper) shank for secure seating in compatible machine spindles and a maximum arbor diameter of 5/8 inches. With an overall length of 10 inches, this arbor provides the reach and rigidity needed for controlled reaming passes on machined bores. It accepts shell reamers ranging from 1-1/16 to 1-9/32 inches in diameter. Machinists and tool-and-die technicians install this type of arbor in drill presses, lathes, and milling machines to produce accurate, smooth-finished holes to final dimensional tolerance.

This arbor is suited for production and job-shop environments where shell reamers are rotated by machine spindle rather than by hand. Typical applications include finishing pre-drilled or bored holes in ferrous and non-ferrous workpieces where tight bore tolerances and surface finish are required. The 3MT shank seats directly into any machine spindle or tailstock with a matching No. 3 Morse Taper socket, making changeover straightforward in shops already running Morse taper tooling.

Key Features

• Arbor Number 6 accepts shell reamers from 1-1/16 to 1-9/32 inches in diameter
• No. 3 Morse Taper (3MT) shank for positive, self-holding fit in compatible spindles and tailstocks
• 10-inch overall length provides reach for deep-bore and extended-reach reaming setups
• Maximum arbor diameter of 5/8 inches for shell reamer mounting
• Sold individually — one arbor per package

Compatibility

Designed as an OEM-style replacement and standard-service shell reamer arbor for machine tools equipped with a No. 3 Morse Taper spindle or tailstock socket.

Installation Notes

Installation is performed by machinists or toolroom technicians. Power down and de-energize the machine spindle completely before seating or removing the arbor. Clean the Morse taper shank and the spindle socket with a lint-free cloth before insertion to ensure full metal-to-metal contact and prevent fretting. Use a drawbar or drift key appropriate for the machine design to secure or release the taper — never strike the arbor shank directly with a steel hammer.