Value Collection ST09MTM3 Morse Taper Reamer 3MT Hss

Product Description

The VALUE COLLECTION ST09MTM3 is a 3MT Morse taper reamer designed to finish-ream tapered bores to precise dimensional tolerances. Built from high-speed steel with a bright, uncoated finish, it delivers clean stock removal in ferrous and non-ferrous materials. The straight flute geometry provides stable cutting action and easy chip evacuation in through-bore applications. Key dimensions include a small end diameter of 0.7748 inches, a large end diameter of 0.9881 inches, a 4.25-inch flute length, and an overall length of 8.875 inches. This tool is installed and used by machinists and toolroom technicians working on manual or CNC machines.

This reamer is suited for machine shops, maintenance facilities, and toolroom environments where Morse taper sockets, spindles, and arbor bores must be reamed to 3MT specification. Typical applications include finishing tapered bores in drill press tables, lathe tailstocks, milling machine spindles, and similar machine tool components that accept 3MT tooling. The right-hand cut direction is standard for conventional spindle rotation on most machine tools.

Key Features

• 3MT Morse taper profile for finishing standard 3MT bores
• High-speed steel construction for durability across a range of workpiece materials
• Straight flute design promotes stable cutting and clean chip flow in through-bores
• Right-hand cut direction compatible with conventional machine spindle rotation
• Bright uncoated finish suitable for use with cutting fluids
• 8.875-inch overall length provides reach for deep-bore applications

Compatibility

Designed as an OEM-style replacement or standard toolroom reamer for machines and components requiring a 3MT Morse taper bore finish.

Installation Notes

This reamer is typically operated by a machinist using a lathe, drill press, or milling machine set to a low spindle speed appropriate for reaming operations. Always secure the workpiece firmly and apply a suitable cutting fluid to extend tool life and improve surface finish. Power down and lock out the machine before mounting or removing the reamer from the spindle. Do not use this tool to remove heavy stock; rough-bore to within a few thousandths of final size before reaming.