Hertel 72029556 Chucking Reamer 0.2955 in Hss 6 Flute

Product Description

The HERTEL 72029556 is a straight-flute chucking reamer designed to bring bored or drilled holes to a precise finished diameter. Ground from high-speed steel (HSS) with a bright, uncoated finish, this reamer holds a nominal cutting diameter of 0.2955 inches and runs with a right-hand cutting direction. The straight-cylindrical shank seats securely in a drill chuck or collet, making it a standard choice for lathe, drill press, and CNC work. With six flutes and a 1.5-inch flute length housed in a 6-inch overall length, it delivers controlled material removal and a clean bore finish on ferrous and non-ferrous workpieces.

This chucking reamer is suited for machine shop, maintenance, and production environments where hole tolerances require a finishing pass after drilling. Typical applications include reaming through-holes and blind holes in steel, aluminum, brass, and similar materials. It fits standard machine setups and is commonly used by machinists, tool-and-die makers, and maintenance technicians who need repeatable hole sizing without a custom tooling order. The 0.2955-inch diameter falls in the 0.2500 to 0.2999 decimal inch range.

Key Features

• 0.2955-inch cutting diameter for precise finished-hole sizing
• Six straight flutes for smooth, controlled material removal
• High-speed steel (HSS) construction for durability across common workpiece materials
• Bright/uncoated finish — suitable for use with cutting fluids
• Straight-cylindrical shank fits standard drill chucks and collets
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and CNC machining centers 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 or maintenance technician familiar with rotary cutting tools. Secure the shank firmly in a properly sized chuck or collet before operation and confirm the spindle is fully stopped before tool changes. Apply an appropriate cutting fluid for the workpiece material to extend tool life and improve bore finish. Inspect the cutting edges for wear or damage before each use and replace the reamer if chipping or dullness is observed.