Hertel 72034267 Chucking Reamer 0.4260 in Hss 6 Flute

Product Description

The HERTEL 72034267 is a straight-flute chucking reamer designed for precision hole finishing in metal components. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing on reamed bores in a wide range of workpiece materials. The reamer measures 0.4260 inches in diameter with a 7-inch overall length and a 1.75-inch flute length. The straight-cylindrical shank seats securely in a drill chuck or collet, making it compatible with drill presses, lathes, and CNC machining centers. Right-hand cutting direction and six flutes provide smooth material removal and a consistent finish on finished-bore applications.

This chucking reamer is suited for machine-shop and production environments where tight bore tolerances are required. It is appropriate for both ferrous and non-ferrous metals in light to medium stock-removal passes. The 0.4260-inch diameter places it in a common size range for precision mechanical assemblies, dowel holes, and bearing bores. Machinists and tool-and-die tradespeople typically deploy this reamer as a finishing step following a drill or boring operation to bring a hole to final size and finish.

Key Features

• 0.4260-inch reamer diameter for precise bore finishing
• High-speed steel (HSS) construction for durability across a range of metals
• Six straight flutes for smooth cutting action and consistent surface finish
• Bright, uncoated finish suitable for general-purpose machining applications
• Straight-cylindrical shank for easy chucking in standard drill chucks or collets
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

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

Installation Notes

This reamer is installed by a machinist and should be secured firmly in a chuck or collet before use. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid for the workpiece material to extend tool life and improve bore finish. Do not use this tool for primary hole creation — it is a finishing tool intended to follow a drilled or bored undersize hole.