Hertel 45675535 Chucking Reamer 0.243 in Solid Carbide

Product Description

The HERTEL 45675535 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production drilling applications. With a 0.243 inch diameter and a bright, uncoated finish, it delivers accurate sizing and smooth bore surfaces in a wide range of workpiece materials. The reamer features a straight cylindrical shank for secure chuck mounting and a right-hand cutting direction. Four straight flutes over a 1 inch flute length provide consistent chip evacuation and dimensional control. Overall length is 3 inches. Solid carbide construction offers rigidity and wear resistance suited to demanding tolerances.

This chucking reamer is used in CNC machining centers, drill presses, and manual mills where a pre-drilled or bored hole must be brought to a precise final diameter. It falls within the 0.2000 to 0.2499 inch reamer diameter range. Typical applications include fixture-plate holes, dowel-pin bores, and close-tolerance through-holes in metal components. It is not configured as a dowel pin reamer or an over/under size reamer, making it a standard straight-to-size tool for production and maintenance machining work.

Key Features

• Solid carbide construction for rigidity and extended tool life
• 0.243 inch diameter with four straight flutes for consistent finish and chip clearance
• 1 inch flute length suits typical shallow-to-moderate depth reaming operations
• Straight cylindrical shank fits standard drill chucks and collet holders
• Bright/uncoated finish — no coating buildup to affect dimensional tolerances
• Right-hand cut, standard rotation for conventional machine spindles

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a drill chuck or collet capable of holding a straight cylindrical shank in the applicable diameter range.

Installation Notes

Chucking reamers are installed by machinists and tool-and-die professionals. Always ensure the machine spindle is fully stopped and the chuck or collet is properly tightened before initiating a cut. Pre-drill or bore the hole to the correct undersize before reaming to avoid overloading the flutes. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish.