Hertel 72401060 Taper Pin Reamer Size 6 Hss

Product Description

The HERTEL 72401060 is a No. 6 taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Manufactured from high-speed steel with a bright, uncoated finish, this reamer delivers consistent material removal in general-purpose machining applications. It features 6 straight flutes with a right-hand cut and a taper rate of 1:48, matching the standard taper pin geometry. The small end diameter measures 0.2773 inches and the large end measures 0.354 inches. Overall length is 5.4375 inches with a flute length of 3.6875 inches. The square shank measures 0.3594 inches (23/64 inches) in diameter. This tool is used by machinists and tool-and-die professionals working with precision assemblies that require taper pin fastening.

This reamer is suited for use in manual machine shops, maintenance environments, and production facilities where taper pin holes must be sized or finished to close tolerances. Common applications include shaft-to-hub assemblies, gear and collar pinning, and precision fixture work. The No. 6 taper size targets mid-range pin diameters and fits applications calling for standard ASME taper pin dimensions. General-purpose tool performance makes it appropriate for mild steel, aluminum, brass, and similar machinable materials.

Key Features

• No. 6 taper pin size with 1:48 taper rate for standard pin fitment
• High-speed steel construction for general-purpose hole finishing
• 6 straight flutes with right-hand cut for consistent chip clearance
• Bright, uncoated finish suitable for use with cutting fluids
• Square shank at 0.3594 inches for positive drive in standard tap wrenches or machine holders
• 3.6875-inch flute length provides sufficient cutting depth for typical taper pin depths

Compatibility

Designed as a standard No. 6 taper pin reamer conforming to ASME taper pin geometry, suitable for use wherever a No. 6 taper pin hole must be sized or finished to specification.

Installation Notes

This reamer is installed and operated by qualified machinists using a tap wrench, hand brace, or low-speed drill press. Always secure the workpiece firmly before reaming and apply an appropriate cutting fluid to extend tool life and improve finish quality. Feed pressure should be steady and consistent; avoid forcing the reamer or reversing rotation under load, as this can chip flutes. Inspect the reamer for wear before use and ensure the shank is fully seated in the driver.