Value Collection 558u7/0 Taper Pin Reamer 7/0 Hss

Product Description

The VALUE COLLECTION 558u7/0 is a straight-shank taper pin reamer designed for sizing, finishing, and enlarging tapered holes to accept 7/0 taper pins. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers general-purpose performance in ferrous and non-ferrous materials. The reamer features a helical flute geometry and a right-hand cutting direction, producing a clean, consistent taper at a 1:48 taper rate. The small end diameter measures 0.0497 inches and the large end measures 0.0666 inches, making it suited for precision-fit pin installations in tight assemblies.

This reamer is used in machine shops, maintenance facilities, and fabrication environments where taper pin holes must be accurately finished or opened to spec. Typical applications include fitting taper pins in shafts, hubs, levers, and mechanical linkages. The 13/16-inch flute length and 1-13/16-inch overall length make it practical for shallow hole work and close-quarter access on small workpieces. It is a general-purpose tool appropriate for manual hand reaming or low-speed machine use.

Key Features

• 7/0 taper pin size with a 1:48 taper rate for precise pin-hole fitting
• Small end diameter 0.0497 inches, large end diameter 0.0666 inches
• High-speed steel construction for durability across a range of materials
• Helical flute geometry with right-hand cutting direction for smooth stock removal
• Bright/uncoated finish suitable for general-purpose applications
• Straight shank with 5/64-inch (0.0781 inches) shank diameter for standard chuck compatibility

Compatibility

Designed as a general-purpose replacement or stock taper pin reamer for applications requiring a 7/0 pin size at a 1:48 taper rate in machine shop, maintenance, and assembly environments.

Installation Notes

Taper pin reamers are typically used by machinists and maintenance technicians using a tap wrench for hand reaming or a drill press and milling machine at reduced spindle speeds. Always secure the workpiece firmly before reaming and apply cutting fluid to extend tool life and improve finish quality. Start with a pilot hole sized appropriately for the small end diameter before reaming to final taper. Do not force the reamer through the material; steady, consistent feed pressure produces the best results.