Hertel 72552516 Chucking Reamer 0.2510 in Cobalt Steel

Product Description

The HERTEL 72552516 is a chucking reamer designed for precision hole finishing in metalworking and machining applications. Built from cobalt steel with a bright, uncoated finish, it delivers consistent sizing and surface quality in a range of hole-finishing operations. The reamer measures 0.2510 inches in diameter with a 6 inch overall length and a 1.5 inch straight flute length. The straight-cylindrical shank seats securely in standard chucks, making it compatible with drill presses, lathes, and CNC machining centers. Right-hand cutting direction is standard. This tool is appropriate for machinists and tool-and-die professionals working to close-tolerance specifications.

This chucking reamer is suited for finishing drilled holes to a precise 0.2510 inch diameter in ferrous and non-ferrous metals. The cobalt steel construction provides heat resistance, making it a reliable choice for harder materials or higher-speed applications where high-speed steel may lose its edge. It is classified as an over or under size reamer, allowing it to be used where a non-standard finished bore diameter is required rather than a nominal size. Typical applications include production machining, fixture building, and precision repair work in job shops and manufacturing environments.

Key Features

• Cobalt steel construction for improved heat and wear resistance over standard HSS
• 0.2510 inch finished bore diameter with over or under size classification
• Straight flute geometry for smooth, consistent cutting action
• Bright, uncoated finish suitable for use across a broad range of materials
• Straight-cylindrical shank for reliable chuck engagement on standard toolholding equipment
• Right-hand cutting direction, 1.5 inch flute length, 6 inch overall length

Compatibility

Designed as an OEM-style replacement or direct-use chucking reamer for standard drill press, lathe, or CNC machining center setups accepting straight-cylindrical shank tooling in the 0.2510 inch diameter range.

Installation Notes

This reamer is installed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank firmly in a chuck before use and verify runout before beginning the cut. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain finish quality.