Hertel 72401029 Taper Pin Reamer No. 2 Hss 6 Flute

Product Description

The HERTEL 72401029 is a No. 2 taper pin reamer designed for hole enlarging, hole finishing, and hole shaping in metal and machined components. Built from high-speed steel (HSS), this reamer features six straight flutes and a right-hand cut for smooth, controlled material removal. The small end diameter measures 0.1605 inches and the large end measures 0.2008 inches, with a taper rate of 1:48 conforming to standard taper pin dimensions. The 13/64-inch square shank provides positive drive in a standard tap wrench or reamer handle. A bright, uncoated finish is suitable for general-purpose reaming applications.

This reamer is used in machine shops, tool rooms, and maintenance environments where taper pin holes must be accurately sized or finished before pin installation. Taper pins are commonly used to secure hubs, collars, and gears to shafts, making precise hole geometry critical to assembly integrity. The No. 2 size fits taper pin hole applications requiring a small end diameter of 0.1605 inches. It is appropriate for use in both manual and light bench-machine setups where a square-shank drive is used.

Key Features

• High-speed steel construction for durability in general-purpose metal reaming
• Six straight flutes with right-hand cut for consistent material removal
• Taper rate of 1:48 conforming to standard taper pin geometry
• Bright uncoated finish suitable for dry or lubricated reaming
• Square shank provides positive drive in standard tap wrenches and reamer handles
• 1.9375-inch flute length allows adequate engagement depth for No. 2 pin applications

Compatibility

Designed for use in standard No. 2 taper pin hole applications where a 1:48 taper rate and a small end diameter of 0.1605 inches are specified.

Installation Notes

This tool is installed and operated by machinists and maintenance technicians using a tap wrench, T-handle, or compatible reamer driver engaging the square shank. Always secure the workpiece firmly before reaming and apply cutting fluid appropriate to the workpiece material to extend tool life and improve finish quality. Do not force the reamer through material in a single pass; use progressive, light passes to achieve the desired hole taper. Inspect the reamer for wear or chipping before each use.