Hertel 72024557 Chucking Reamer 0.2455in Hss 6 Flute

Product Description

The HERTEL 72024557 is a straight-flute chucking reamer designed to finish-size drilled or bored holes to a precise 0.2455-inch diameter. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable performance in a wide range of ferrous and non-ferrous materials. The straight-cylindrical shank seats securely in standard drill chucks or collet holders, making it a go-to tool for machinists and maintenance professionals who need consistent, repeatable hole tolerances. With 6 flutes and a right-hand cutting direction, the reamer removes material evenly and produces a smooth bore finish in a single pass.

This chucking reamer is suited for machine-shop and maintenance applications where hole tolerances demand accuracy beyond what a drill alone can achieve. It works in vertical mills, drill presses, and lathes across light industrial, toolroom, and job-shop environments. The 6-inch overall length provides adequate reach for standard workpiece thicknesses, while the 1.5-inch flute length handles typical stock depths. The straight-cylindrical shank allows simple installation in any standard chuck without adapters.

Key Features

• 0.2455-inch finished bore diameter for precise hole sizing
• HSS construction provides toughness and re-sharpening capability
• 6 straight flutes with right-hand cutting direction for smooth, even material removal
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank fits standard drill chucks and collet holders without adapters
• 6-inch OAL with 1.5-inch flute length suits typical machine-shop workpiece depths

Compatibility

Designed as a standard chucking reamer for use in drill presses, vertical milling machines, and lathes equipped with a drill chuck or collet system capable of accepting a straight-cylindrical shank.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with reaming procedures. Always bring the spindle to a full stop before mounting or removing the reamer from the chuck. Use a cutting fluid appropriate for the workpiece material to extend tool life and improve bore finish. Never reverse spindle direction while the reamer is engaged in a hole, as this can damage the cutting edges.