Hertel 72033376 Chucking Reamer 0.3370 in Hss Straight Flute

Product Description

The HERTEL 72033376 is a straight-flute chucking reamer designed for precision hole finishing in machine tool applications. Ground from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing and smooth surface finishes in a wide range of workpiece materials. The reamer measures 0.3370 inches in diameter with a 6-inch overall length and a 1-1/2-inch flute length. Its straight-cylindrical shank seats securely in standard drill chucks and collet holders. Six right-hand cutting flutes provide balanced chip evacuation and consistent bore geometry. Machinists and tool-and-die professionals specify this style for general-purpose reaming on lathes, drill presses, and machining centers.

This chucking reamer is suited for finishing drilled or bored holes to close tolerances in production and maintenance machining environments. It is appropriate for through-hole and blind-hole applications where dimensional accuracy and surface finish are required. The 0.3370-inch diameter falls within the 0.3000 to 0.3499 inch reamer diameter range, making it a standard selection for holes in that size family. Typical materials machined include mild steel, aluminum, brass, and similar metals commonly encountered in general machine shop work.

Key Features

• 0.3370-inch reamer diameter for precise hole sizing within the 0.3000 to 0.3499 inch range
• HSS tool material provides toughness and wear resistance across a broad range of workpiece materials
• Six straight flutes with right-hand cutting direction for balanced chip flow and consistent bore finish
• Bright, uncoated finish — no coating buildup that could affect dimensional accuracy
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• 6-inch overall length with 1-1/2-inch flute length suits typical through-hole and shallow blind-hole applications

Compatibility

Designed as a standard chucking reamer for use in drill chucks, ER collets, and other straight-shank toolholding systems on lathes, drill presses, and vertical machining centers. No specific OEM model compatibility is stated by the manufacturer for this part.

Installation Notes

This reamer is installed by a machinist or tool-and-die professional. Ensure the machine is fully stopped and the spindle is locked before mounting or removing the tool from its holder. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not force the reamer into an undersized hole — pre-drill or bore to the recommended stock allowance before reaming.