Hertel 72033822 Chucking Reamer 0.3820 in 6 Flute Hss

Product Description

The HERTEL 72033822 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it produces accurate, smooth bores to a nominal diameter of 0.3820 inches. The straight-cylindrical shank seats securely in drill chucks and collets for stable, chatter-free operation. At 7 inches overall length with a 1.75-inch flute length, this reamer suits through-hole and shallow blind-hole applications where consistent dimensional accuracy is required. It is a standard tool for machinists and tool-and-die professionals working in production or job-shop environments.

This chucking reamer is suited for use in drill presses, lathes, and milling machines where a fixed chuck or collet holds the straight-cylindrical shank. The 6-flute, right-hand cutting geometry distributes cutting load evenly, reducing tool deflection and improving surface finish in mild steel, aluminum, brass, and similar machinable materials. It falls within the 0.3500 to 0.3999 inch reamer diameter range and is appropriate for general-purpose reaming tasks in manufacturing, maintenance, and repair machining operations.

Key Features

• 0.3820 inch reaming diameter for precision hole sizing
• 6-flute straight-flute geometry for balanced cutting and improved finish
• High-speed steel (HSS) construction for durability across common workpiece materials
• Bright, uncoated finish — no coating buildup to affect dimensional tolerance
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Right-hand cutting direction for conventional machine spindle operation

Compatibility

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

Installation Notes

Installation and use should be performed by a qualified machinist familiar with reaming operations. Secure the shank fully in the chuck or collet before operation and verify runout before cutting. Always apply appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Power down and lock out the machine spindle before changing or inspecting the reamer.