Value Collection SM34MT04 4MT Morse Taper Reamer Hss

Product Description

The VALUE COLLECTION SM34MT04 is a 4MT Morse taper reamer designed to finish-ream tapered bores to precise tolerances in machine tool spindles, tailstocks, and similar taper-socket applications. The straight-flute, right-hand-cut geometry in high-speed steel removes material cleanly on the finishing pass. The small end diameter is 1.0167 inches and the large end diameter is 1.2893 inches, with a 5.25-inch flute length and an 8.5-inch overall length. The 1.25-inch straight cylindrical shank seats in a drill press, lathe tailstock, or milling machine spindle with a compatible chuck or collet. Weight is 1.98 pounds.

This reamer is suited for machine shops, maintenance departments, and tool-and-die operations that need to restore or finish No. 4 Morse taper sockets. Typical applications include refitting lathe headstock and tailstock bores, fitting arbors and toolholders, and general metalworking where a clean, accurate 4MT taper seat is required. The bright uncoated finish is appropriate for general-purpose ferrous and non-ferrous stock removal at moderate cutting speeds.

Key Features

• 4MT Morse taper profile: 1.0167 inches small end to 1.2893 inches large end
• High-speed steel construction for durability on ferrous and non-ferrous materials
• Straight flute geometry with right-hand cut for smooth, chatter-resistant finishing passes
• 1.25-inch cylindrical straight shank for standard chuck or collet holding
• 5.25-inch flute length and 8.5-inch overall length for full-depth 4MT socket access
• Bright uncoated finish - no coating to spall or interfere with tight-tolerance work

Compatibility

Designed as an OEM-style replacement and general-use finishing reamer for No. 4 Morse taper sockets in lathes, drill presses, milling machines, and similar machine tools requiring a standard 4MT taper bore.

Installation Notes

Morse taper reamers should be installed and operated by qualified machinists or maintenance technicians. Power down and lock out the machine before securing the shank in the chuck or collet. Use cutting fluid appropriate for the workpiece material to reduce heat and extend tool life. Feed rate and spindle speed must be selected based on workpiece material and machine rigidity - do not force the reamer or exceed the tool's rated cutting envelope.