Hertel 2557502 Chucking Reamer Hss 0.5010 in Straight Shank

Product Description

The HERTEL 2557502 is a high-speed steel (HSS) chucking reamer with a straight-cylindrical shank, designed for precision hole finishing in metal and other machinable materials. Reamer diameter is 0.5010 inches, classifying it as an over/under size reamer for applications requiring a hole slightly above the nominal 0.5000-inch standard. The bright, uncoated finish is standard for HSS reamers used across a broad range of workpiece materials. Six straight flutes provide smooth cutting action and consistent chip evacuation. Overall length is 8 inches with a 2-inch flute length. Right-hand cutting direction is standard for conventional drill press, lathe, or CNC spindle operation.

This reamer is suited for finishing bored or drilled holes to close tolerances in job shop, production machining, and maintenance-repair environments. The straight-cylindrical shank mounts directly in standard drill chucks, collet chucks, or floating holders without special toolholding adapters. Typical applications include precision hole sizing in steel, cast iron, aluminum, and similar materials where a controlled diameter slightly above nominal is required for fit or assembly clearance. The 0.5010-inch diameter makes it a common choice when a light interference or light clearance fit is needed relative to a 0.5000-inch nominal bore.

Key Features

• 0.5010-inch reamer diameter for over-nominal hole sizing
• 6 straight flutes for smooth cutting and chip clearance
• HSS construction provides good toughness across common workpiece materials
• Bright uncoated finish — suitable for use with standard cutting fluids
• Straight-cylindrical shank fits standard drill chucks and collet holders
• Right-hand cutting direction for conventional spindle rotation

Compatibility

Designed as a straight-shank chucking reamer for use in drill presses, lathes, turret lathes, and CNC machining centers equipped with a standard drill chuck or collet system accepting a straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before mounting or removing the reamer from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve target surface finish. Do not exceed the reamer manufacturer's recommended feed and speed parameters for the material being cut.