Hertel 72033426 Chucking Reamer 0.3420 in Hss Straight Flute

Product Description

The HERTEL 72033426 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metal fabrication and machining applications. With a reamer diameter of 0.3420 inches and an overall length of 6 inches, this tool delivers accurate bore sizing when used in a drill press, lathe, or CNC machine. The bright, uncoated finish is standard for general-purpose HSS reamers used across a range of ferrous and non-ferrous materials. Six straight flutes and a right-hand cutting direction produce clean, consistent finishes in through-holes and blind holes alike. Installation is performed by machinists and tool room technicians.

This chucking reamer is suited for production and job shop environments where close-tolerance hole finishing is required. The straight-cylindrical shank seats securely in collet chucks, drill chucks, and machine tool holders commonly found on manual and CNC lathes, drill presses, and knee mills. With a 1.5-inch flute length, it is sized for moderate-depth reaming passes in a variety of workpiece materials. It is not configured as a dowel pin reamer or an over/under size reamer, making it a standard finish-reamer for nominal bore sizing at 0.3420 inches.

Key Features

• 0.3420-inch reamer diameter for precision bore finishing to close tolerances
• HSS tool material provides durability across ferrous and non-ferrous workpieces
• Six straight flutes with right-hand cutting direction for smooth, consistent stock removal
• Straight-cylindrical shank compatible with standard collet and drill chuck toolholders
• Bright/uncoated finish — general-purpose HSS, no additional coating treatment
• 6-inch overall length with 1.5-inch flute length for moderate-depth reaming applications

Compatibility

Designed as a standard chucking reamer for use in machine tool setups requiring a 0.3420-inch finished bore diameter; compatible with any toolholder accepting a straight-cylindrical shank of corresponding diameter.

Installation Notes

Chucking reamers are installed and operated by machinists following standard machine shop practices. Secure the shank fully in the collet or chuck before operation and verify runout with an indicator before cutting. Power down and de-energize the machine tool completely before changing tooling. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish quality.