Value Collection 558u 3 Taper Pin Reamer No. 3 Hss

Product Description

The VALUE COLLECTION 558u 3 is a No. 3 taper pin reamer designed for enlarging, finishing, and shaping taper pin holes in metal components. Built from high-speed steel with a bright, uncoated finish, this reamer delivers reliable cutting performance in general-purpose machining applications. It features a helical flute design with right-hand cutting direction and a 1:48 taper rate, matching standard taper pin geometry. The small end diameter measures 0.1813 inches and the large end measures 0.2294 inches, giving machinists the proper taper to seat No. 3 taper pins accurately. Machinists and tool and die professionals use this reamer in manual or machine operations where precise hole geometry is required.

This reamer is suited for job shop, maintenance, and production environments where taper pin holes must be cut or refined to standard No. 3 pin dimensions. Typical applications include fitting taper pins in shafts, collars, and mechanical assemblies where positive locking or alignment is needed. The straight shank allows use in standard drill chucks and collet holders. With a 2-5/16 inch flute length and 3-11/16 inch overall length, it fits well in bench drill press and manual lathe tailstock operations on small to medium workpieces.

Key Features

• High-speed steel construction for general-purpose cutting in ferrous and non-ferrous materials
• Helical flute geometry promotes smooth chip evacuation and consistent finish
• Right-hand cutting direction with left-hand spiral for reduced chatter
• 1:48 taper rate matches standard taper pin specifications for No. 3 pins
• Bright, uncoated finish suitable for use with standard cutting fluids
• Straight shank fits standard drill chucks and collet holders without adapters

Compatibility

Designed as an OEM-style replacement or direct-use reamer for applications requiring a standard No. 3 taper pin hole, with a small end diameter of 0.1813 inches and a large end diameter of 0.2294 inches at a 1:48 taper rate.

Installation Notes

This tool is installed and operated by machinists or maintenance technicians using a drill press, lathe, or hand brace with appropriate work-holding. Always secure the workpiece firmly and apply cutting fluid to extend tool life and improve surface finish. Advance the reamer gradually with consistent feed pressure to avoid bell-mouthing the hole entrance. Inspect the reamer for wear or chipping before each use and replace if cutting edges are degraded.