Cleveland C25501 Chucking Reamer Letter D 6 in Hss

Product Description

The CLEVELAND C25501 is a straight-flute chucking reamer designed for precision hole finishing in metalworking applications. Built from high-speed steel with a bright, uncoated finish, this reamer produces accurate, smooth bores in a range of materials. It carries a letter D diameter designation, corresponding to 0.2460 inches decimal, and is suited for right-hand cutting operations in machine tool setups. With six flutes and a straight cylindrical shank, it seats securely in standard drill chucks and collets. Licensed machinists and tool-and-die technicians use this reamer to bring drilled holes to tight dimensional tolerance in production and job shop environments.

This reamer is intended for machine reaming operations where hole diameter and finish consistency are critical. The 6-inch overall length and 1.5-inch flute length make it appropriate for through-holes and shallow blind holes in workpieces commonly encountered in general machining, fixture building, and mechanical assembly. It is not configured as a dowel pin reamer or an over/under size reamer, making it a standard production reamer for nominal letter D diameter work.

Key Features

• Letter D diameter (0.2460 inches decimal) for precision hole sizing
• Six straight flutes with right-hand cutting direction
• High-speed steel construction for durability across a range of workpiece materials
• Bright uncoated finish suitable for use with cutting fluids
• Straight cylindrical shank for compatibility with standard drill chucks and collets
• 6-inch overall length provides reach and rigidity in machine tool setups

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with a chuck or collet capable of holding a straight cylindrical shank at letter D diameter range.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with reaming procedures and machine tool operation. Secure the shank fully in the chuck or collet and verify runout before cutting. Always apply appropriate cutting fluid for the workpiece material to extend tool life and improve bore finish. Disengage the machine spindle and allow it to come to a full stop before measuring the finished bore or adjusting the tool.