Value Collection SM2300232 Spiral Shell Reamer 2.5in Hss

Product Description

The VALUE COLLECTION SM2300232 is a spiral shell reamer designed for precision hole finishing in metal fabrication and machining applications. Built from high-speed steel, this reamer delivers consistent cutting performance and dimensional accuracy when enlarging or finishing bored holes. It features a spiral flute geometry with a left-hand spiral direction and right-hand cutting direction, a combination that reduces chatter and improves surface finish on through-holes. At 2.5 inches in diameter with a 3.75-inch overall length and a 1.25-inch center hole, this tool is sized for heavy-duty reaming work typically performed by machinists and tool-and-die professionals.

This spiral shell reamer is used in machine shop environments for finishing large-diameter bored or drilled holes to tight tolerances. The No. 9 arbor compatibility makes it suitable for use with standard shell reamer arbors in manual and CNC milling setups. Typical applications include finish-reaming bearing bores, bushing housings, and precision fit holes in industrial components where hole quality and roundness are critical to assembly function.

Key Features

• High-speed steel construction for durability in metal cutting applications
• Spiral flute design reduces chatter and improves bore surface finish
• Left-hand spiral with right-hand cutting direction for controlled chip evacuation
• No. 9 arbor compatibility for use with standard shell reamer arbors
• 2.5-inch reaming diameter with 1.25-inch center hole for arbor mounting
• 3.75-inch overall length suits typical milling machine and boring mill setups

Compatibility

Compatible with No. 9 shell reamer arbors. Designed as a standard shell-style reamer for use in manual milling machines, CNC machining centers, and boring mills where large-diameter hole finishing is required.

Installation Notes

Shell reamers must be mounted on a correctly sized arbor before use — confirm the arbor is rated for No. 9 shell reamer fitment before installation. Secure the arbor and reamer assembly per machine tool manufacturer specifications and ensure all spindle locks are engaged before tightening. Always reduce spindle speed and increase feed rate compared to drilling operations to achieve proper surface finish and avoid tool deflection. Power down and lock out the machine before mounting or removing the reamer.