Value Collection ST0640140 Bridge Reamer 1-5/8 in Hss 4MT

Product Description

The VALUE COLLECTION ST0640140 is a bridge reamer designed for enlarging and aligning structural holes in steel fabrication, bridge construction, and heavy ironwork. Built from high-speed steel with a bright, uncoated finish, it features a 1-5/8 inch diameter cutting end, a 7-3/8 inch flute length, and a 13 inch overall length. The 4MT Morse taper shank allows direct mounting in compatible drill presses, magnetic drills, and heavy boring equipment. With 5 straight flutes and a right-hand cutting direction, the tool delivers controlled material removal and consistent hole geometry in ferrous and non-ferrous structural applications. Licensed ironworkers and structural fabricators are the primary users of this tool class.

This reamer is suited for heavy-duty structural work where bolt holes in steel members must be brought to final size or aligned across mating plates and flanges. It is commonly used in bridge construction, shipbuilding, heavy equipment fabrication, and structural steel erection. The small end diameter of 1-1/4 inch allows the tool to enter a pilot hole before stepping up to the full 1-5/8 inch finished diameter. The Morse taper shank ensures a positive, self-holding fit in standard taper-socket spindles used on industrial floor-model and magnetic base drills.

Key Features

• 1-5/8 inch cutting diameter with 1-1/4 inch small end for pilot entry
• 7-3/8 inch flute length provides deep reach into thick structural sections
• 13 inch overall length for clearance in structural framing applications
• High-speed steel construction resists heat buildup during heavy-feed cutting
• 5 straight flutes with right-hand cut for steady, chatter-resistant operation
• 4MT Morse taper shank seats securely in standard industrial drill spindles
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy

Compatibility

Designed for use in drill presses, heavy magnetic base drills, and boring machines fitted with a No. 4 Morse taper socket spindle. Suitable for structural steel, iron, and similar ferrous materials typical of bridge and fabrication work.

Installation Notes

Installation and operation of this tool should be performed by qualified ironworkers, machinists, or structural fabricators familiar with taper-shank tooling. Ensure the machine spindle is fully powered down and locked out before seating or removing the Morse taper shank. Use a proper drift pin and drift slot to remove the tool — never strike the tool or spindle directly to dislodge the taper. Appropriate cutting fluid should be applied during operation to extend tool life and maintain hole quality.