Value Collection ST0730112 Bridge Reamer 1-3/16 in Hss

Product Description

The VALUE COLLECTION ST0730112 is a bridge reamer designed for enlarging and aligning holes in structural steel, plate, and fabricated assemblies. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent cutting performance without additional surface treatment. The reamer measures 1-3/16 inches in diameter at the cutting end, with a 59/64-inch small end diameter, a 7-3/8-inch flute length, and a 12-inch overall length. It runs a 5-flute, left-hand spiral configuration with a right-hand cutting direction, providing smooth chip evacuation and reduced chatter during through-hole reaming operations. The Morse Taper No. 3 (3MT) shank seats directly into compatible machine spindles or drill press tapers.

Bridge reamers are standard tooling in structural steel fabrication, ironworking, and heavy equipment assembly. This reamer is suited for job-site and shop use where bolt holes in steel members need to be aligned or opened to final diameter before fastener installation. It is typically used with magnetic drill presses, drill presses, or heavy-duty portable drilling equipment capable of accepting a 3MT shank. Ironworkers and fabricators rely on this tool class for connection work on beams, columns, gusset plates, and similar structural applications.

Key Features

• 1-3/16 inch cutting diameter with 59/64 inch small end diameter for tapered lead-in when aligning mismatched holes
• 7-3/8 inch flute length provides ample cutting surface for thick structural members
• 5-flute left-hand spiral geometry with right-hand cut for smooth chip flow and reduced pull-in tendency
• High-speed steel construction maintains edge integrity under heavy feed rates in ferrous materials
• Morse Taper No. 3 (3MT) shank for direct mounting in compatible spindles without a chuck
• Bright/uncoated finish — no coating buildup that could affect dimensional tolerance

Compatibility

Designed for use in drill presses, magnetic base drills, and machine spindles equipped with a No. 3 Morse Taper (3MT) socket. Suitable for reaming operations in structural steel and similar ferrous materials.

Installation Notes

Installation and use should be performed by qualified machinists, ironworkers, or fabricators familiar with reaming operations. Ensure the machine spindle is fully powered down and locked out before seating or removing the taper shank. Clean the 3MT shank and spindle socket of chips, oil, and debris before insertion to ensure full taper contact and prevent runout. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole finish quality.