Cleveland C23812 Bridge Reamer 7/16 in Hss Morse Taper

Product Description

The CLEVELAND C23812 is a bridge reamer designed for enlarging and aligning holes in structural steel, heavy fabrication, and similar metal joining applications. Built from high-speed steel with an oxide finish, this reamer features a left-hand spiral, right-hand cut configuration that helps draw chips away from the cutting edge during operation. The 7/16-inch (0.4375 inch decimal) diameter and 4-3/8-inch flute length make it suited for moderate-depth reaming in bridge, structural, and general metalworking applications. A No. 2 Morse Taper shank provides a secure, self-holding fit in compatible drill presses, lathes, and reaming machines.

This bridge reamer is used primarily in structural steel fabrication, ironwork, and heavy-duty machining environments where bolt holes must be precisely sized and aligned. The spiral flute design and right-hand cutting action with left-hand spiral are specifically engineered to reduce chatter and improve chip evacuation when working through thick stock or stacked plating. Machinists, ironworkers, and millwrights typically deploy this tool in production and field-repair scenarios involving structural connections.

Key Features

• 7/16-inch diameter with 0.2660-inch small end diameter for tapered entry into pre-drilled holes
• High-speed steel construction for durability across ferrous metals
• Oxide finish provides added lubricity and corrosion resistance
• Left-hand spiral with right-hand cut for effective chip evacuation
• No. 2 Morse Taper shank seats securely in MT2-compatible spindles
• 4-flute geometry balances material removal rate with surface finish quality

Compatibility

Designed for use in drill presses, lathes, and reaming machines equipped with a No. 2 Morse Taper (2MT) spindle socket. Suitable for reaming operations in structural steel, iron, and similar ferrous materials.

Installation Notes

Installation and operation should be performed by qualified machinists or ironworkers familiar with reaming procedures. Ensure the machine spindle is fully stopped before seating or removing the Morse Taper shank. Use appropriate cutting fluid for the workpiece material to extend tool life and improve hole finish. Secure the workpiece firmly before beginning the reaming operation to prevent movement and tool deflection.