Hertel 72038250 Chucking Reamer 0.825 in Hss 8 Flute

Product Description

The HERTEL 72038250 is a straight-flute chucking reamer designed for precision hole finishing in machine shop and production environments. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing on through-holes and blind bores across a wide range of materials. The straight-cylindrical shank seats securely in standard drill chucks or collet holders. With 8 flutes and a right-hand cutting direction, it provides smooth, consistent material removal and a clean finish. Weighing 0.23 pounds, it is a practical, production-ready tool for machinists and tool-and-die professionals.

This chucking reamer is suited for CNC machining centers, manual mills, drill presses, and lathes in both job shop and production settings. It is used to bring drilled or bored holes to a precise finished diameter within the 0.7000 to 0.9999 inch decimal inch range. The 2.5-inch flute length provides adequate engagement for typical through-hole applications, while the 9.5-inch overall length accommodates setups requiring extended reach. Standard machine tool installations by machinists, tool-and-die makers, and CNC operators are the primary use case.

Key Features

• 0.8250 inch finished diameter for precise hole sizing
• 8 straight flutes with right-hand cutting direction for smooth stock removal
• HSS construction provides good toughness and wear resistance across a range of workpiece materials
• Bright, uncoated finish — no coating buildup to affect dimensional tolerance
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• 9.5 inch overall length with 2.5 inch flute length for extended-reach applications

Compatibility

Designed as a standard chucking reamer for use in drill chucks, collet holders, and floating reamer holders on CNC machining centers, manual mills, drill presses, and lathes accepting a straight-cylindrical shank tool in the 0.8250 inch diameter class.

Installation Notes

This reamer is installed and operated by qualified machinists or CNC technicians. Secure the straight-cylindrical shank firmly in a drill chuck or precision collet holder before use, and confirm runout is within acceptable limits for the required hole tolerance. Always reduce spindle speed relative to drilling and apply appropriate cutting fluid for the workpiece material. Do not use a worn or oversized chuck that allows shank movement, as this will compromise hole accuracy and can damage the reamer.