Value Collection SM26N07 Taper Pin Reamer Size 7 Hss

Product Description

The VALUE COLLECTION SM26N07 is a Number 7 taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Machined from high-speed steel with a bright, uncoated finish, this reamer features a helical flute geometry and right-hand cutting direction. The small end diameter measures 0.3297 inches and the large end measures 0.422 inches, producing the precise taper required for a Number 7 pin fit. At 6.3125 inches overall length with a 4.4375-inch flute length, it suits typical bench and machine setups used by machinists, toolmakers, and maintenance technicians.

This taper pin reamer is used in general-purpose machining applications where tapered holes must be sized accurately for pin-and-shaft assemblies, linkages, and mechanical fastening. It is suited for manual operation in a tap wrench or slow-speed machine spindle. The 13/32-inch straight shank fits standard collets and chucks used in drill presses, lathes, and milling machines. Typical applications include maintenance and repair work on mechanical assemblies requiring precise hole finishing to a 1:48 taper rate.

Key Features

• Number 7 taper pin size with 1:48 taper rate for precise pin-hole fitment
• High-speed steel construction for general-purpose cutting performance
• Helical flute geometry promotes smooth chip evacuation during reaming
• Right-hand cutting direction with left-hand spiral flute reduces chatter
• Bright, uncoated finish — no additional coating to affect dimensional accuracy
• Straight shank at 0.4063 inches (13/32 inches) for standard chuck compatibility

Compatibility

Designed as a general-purpose replacement or standard taper pin reamer for Number 7 pin applications following the ASME B5.20 taper pin series at a 1:48 taper rate. No specific model or machine compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with reaming operations. Power down and lock out all equipment before setting up or changing tooling. Use a slow spindle speed and a suitable cutting fluid to extend tool life and achieve a clean finish. Do not force the reamer — apply light, steady feed pressure and back off periodically to clear chips.