Hertel 72401086 Taper Pin Reamer Size 8 Hss 6 Flutes

Product Description

The HERTEL 72401086 is a Size 8 taper pin reamer manufactured from high-speed steel (HSS) for hole enlarging, hole finishing, and hole shaping operations. It features 6 straight flutes with a right-hand cut and a bright/uncoated finish. The reamer has a small end diameter of 0.3971 inches and a large end diameter of 0.505 inches, with a taper rate of 1:48. The 7/16-inch square shank provides positive drive in standard reamer holders. Machinists and toolroom technicians use this tool for precision sizing and finishing of taper pin holes in metal components requiring tight tolerances.

This taper pin reamer is suited for general-purpose machining applications in job shops, maintenance facilities, and production environments. It is designed to ream holes to accept standard Size 8 taper pins in assemblies where secure, removable pin connections are required. Typical applications include mechanical assemblies, tooling fixtures, and component alignment work across a range of ferrous and non-ferrous materials.

Key Features

• Size 8 taper pin geometry with 1:48 taper rate for standard taper pin fitment
• High-speed steel construction for durability across general-purpose machining
• 6 straight flutes for consistent chip evacuation and smooth hole finish
• Right-hand cut for use with conventional drill press and lathe setups
• Square shank provides positive engagement in standard holders and tap wrenches
• Bright/uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed as a standard Size 8 taper pin reamer compatible with holders and chucks accepting a 7/16-inch square shank; intended for use wherever Size 8 taper pin holes are required per standard taper pin specifications.

Installation Notes

Installation should be performed by a qualified machinist using appropriate cutting fluid for the workpiece material. Secure the workpiece firmly before reaming and ensure the reamer is aligned with the pilot hole to prevent deflection and tool damage. Apply consistent feed pressure and avoid reversing the reamer under load, as this can damage the cutting edges. Follow applicable shop safety procedures including eye protection and secure guarding when operating rotary tooling.