Cleveland C23820 Bridge Reamer 15/16 in Hss 4 Flute

Product Description

The CLEVELAND C23820 is a bridge reamer designed for enlarging and aligning holes in structural steel and heavy fabrication work. Built from high-speed steel with an oxide finish, it features a 4-flute spiral design with left-hand spiral and right-hand cut geometry. The flute length measures 7-3/8 inches with a 12-inch overall length, and the cutting diameter is 15/16 inch (0.9375 inch). The Morse Taper No. 3 shank seats securely in compatible drill press and boring machine spindles, making this a reliable choice for metalworking professionals and ironworkers on structural and bridge fabrication jobs.

Bridge reamers are used in structural steel fabrication, bridge construction, and heavy equipment repair where bolt holes require accurate sizing and alignment. This reamer is suited for use in drill presses, magnetic drills, and boring mills equipped with a No. 3 Morse Taper spindle. The left-hand spiral flute design helps pull chips away from the cutting edge during right-hand rotation, reducing chip packing in deep holes. It is appropriate for both shop and field applications where hole quality and dimensional accuracy are required.

Key Features

• 15/16 inch (0.9375 inch) cutting diameter for structural bolt hole sizing
• High-speed steel construction for durability in ferrous metals
• Left-hand spiral flutes promote chip evacuation during right-hand cutting
• No. 3 Morse Taper shank for positive seating in standard machine spindles
• Oxide finish provides corrosion resistance and reduces friction
• 7-3/8 inch flute length accommodates thick material stacks

Compatibility

Designed for use in drill presses, magnetic base drills, and boring machines fitted with a No. 3 Morse Taper (3MT) spindle socket.

Installation Notes

Installation and operation should be performed by qualified machinists, ironworkers, or fabricators familiar with reaming procedures. Ensure the machine spindle is fully stopped before inserting or removing the taper shank, and confirm the taper socket is clean and free of debris before seating. Use appropriate cutting fluid for the material being reamed to extend tool life and maintain hole finish. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection.