Hertel 72012057 Chucking Reamer 0.1205in Hss 4 Flute

Product Description

The HERTEL 72012057 is a straight-flute chucking reamer designed for precision hole finishing in metal and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent sizing and smooth surface finishes in through-holes and blind holes. The reamer measures 0.1205 inches in diameter with a 3-1/2 inch overall length and a 7/8 inch flute length. Its straight-cylindrical shank seats securely in standard drill press chucks and CNC or manual lathe tooling. With four right-hand cutting flutes, it removes material evenly and holds tight diameter tolerances appropriate for close-fit pin and bushing applications.

This reamer is suited for machine shop and production environments where precise bore finishing is required after drilling. It is commonly used in light-duty fixture work, component assembly, and close-tolerance hole sizing operations on ferrous and non-ferrous stock. The 0.1205 inch diameter falls within the 0.1000 to 0.1499 inch decimal inch range, making it appropriate for small-diameter precision work in both job-shop and production settings. Machinists, tool-and-die makers, and CNC operators are the primary users of this tool type.

Key Features

• 0.1205 inch diameter for precision small-bore finishing
• HSS construction provides durability across a broad range of workpiece materials
• 4 straight right-hand flutes for even material removal and consistent finish
• Bright, uncoated finish — no coating buildup to affect final bore diameter
• Straight-cylindrical shank for reliable chuck retention
• 3-1/2 inch OAL with 7/8 inch flute length suits standard chucking depth requirements

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and CNC machining centers equipped with chucks or collets that accept straight-cylindrical shanks in this diameter class.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist or tooling technician. Ensure the workpiece and machine spindle are fully secured before engaging the reamer, and confirm the chuck or collet is properly tightened on the shank. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not exceed the recommended feed and speed parameters for the workpiece material and machine type.