Value Collection SM25N50 Taper Pin Reamer 5/0 Hss

Product Description

The VALUE COLLECTION SM25N50 is a taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Built from high-speed steel (HSS) with a bright, uncoated finish, this tool holds an edge through general-purpose reaming operations in a machine shop or maintenance environment. The 5/0 pin size corresponds to a small end diameter of 0.0719 inches and a large end diameter of 0.0966 inches, with a taper rate of 1:48. The spiral flute geometry with a right-hand cut and left-hand spiral direction helps pull chips away from the cutting edge during the stroke. Machinists, toolmakers, and maintenance technicians are the primary users.

This reamer is suited for general-purpose hole finishing in both production and repair applications where a tapered pin fit is required. Typical use cases include fitting taper pins in shafts, collars, and mechanical assemblies. The straight shank measures 7/64 inches (0.1094 inches decimal) and accepts standard drill chucks or collet holders. The 1-3/16 inch flute length and 2-3/16 inch overall length make this a compact tool appropriate for benchtop drill presses, milling machines, or hand-held drilling equipment when used with care.

Key Features

• High-speed steel construction for general-purpose reaming durability
• Spiral flute, left-hand helix with right-hand cut for effective chip evacuation
• Taper rate of 1:48 to match standard taper pin specifications
• Small end diameter of 0.0719 inches, large end diameter of 0.0966 inches
• Straight shank at 7/64 inches (0.1094 inches) for compatibility with standard chucks and collets
• Bright, uncoated finish suitable for a wide range of workpiece materials

Compatibility

Designed as a general-purpose taper pin reamer for 5/0 taper pin applications in standard mechanical assemblies requiring a 1:48 taper rate.

Installation Notes

This reamer should be installed and operated by a qualified machinist or maintenance technician familiar with reaming procedures. Always secure the workpiece and ensure the spindle is properly aligned before starting the cut to avoid bell-mouthing the hole. Use cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Power down and lock out the machine before changing or inspecting the tool.