Value Collection ST0640148 Bridge Reamer 1-3/4 in Hss

Product Description

The VALUE COLLECTION ST0640148 is a bridge reamer designed to enlarge and align drilled or punched holes in structural steel, plate, and similar metalwork. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent cutting performance on ferrous and non-ferrous materials. The 1-3/4 inch diameter reamer features five straight flutes with a right-hand cutting direction, a 7-3/8 inch flute length, and a 13 inch overall length. The No. 4 Morse Taper (4MT) shank mounts directly into compatible taper-shank drill presses, magnetic drills, or reaming machines used in structural fabrication and ironwork applications.

This reamer is suited for heavy structural applications where bolt holes require precise enlargement or alignment before fastener installation. Typical use cases include steel erection, bridge fabrication, heavy equipment repair, and ironworker operations. The straight-flute geometry is appropriate for through-hole reaming in workpieces that present interrupted cuts or pre-existing holes that are slightly misaligned. Licensed machinists, ironworkers, and tool-and-die professionals are the primary users of this tool.

Key Features

• 1-3/4 inch reaming diameter with a small end diameter of 1-1/4 inch for progressive material removal
• High-speed steel construction provides heat and wear resistance during heavy cutting operations
• Five straight flutes with right-hand cut for smooth, consistent chip evacuation
• No. 4 Morse Taper shank for positive, self-holding engagement in taper-shank spindles
• Bright, uncoated finish — no additional coating to affect dimensional tolerance
• 13 inch overall length provides reach for deeper structural members and plate stacks

Compatibility

Designed for use in drill presses, magnetic drills, and reaming machines equipped with a No. 4 Morse Taper (4MT) spindle socket.

Installation Notes

This tool is installed and operated by qualified machinists or ironworkers following applicable shop safety procedures. Before mounting, confirm the machine spindle is fully stopped and isolated from power. Insert the 4MT shank firmly into the spindle socket and verify full seating before applying cutting force. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole finish quality.