Hertel 4599973 Taper Pin Reamer Set 17 Piece Hss

Product Description

The HERTEL 4599973 is a 17-piece taper pin reamer set engineered for precise reaming of standard taper pin holes in metalworking and mechanical assembly applications. Each reamer features a helical flute geometry with a left-hand spiral and right-hand cut, which helps clear chips efficiently and reduces chatter during the cut. The set covers taper pin sizes 7/0 through 0, with reamer diameters ranging from 0.0666 inches at the small end of the range up to 0.1638 inches at the large end of the stated set range. All reamers are manufactured from high speed steel with a bright polished finish and straight shanks for use in standard drill chucks or reamer drivers.

This set is suited for machine shops, maintenance technicians, and tool room applications where taper pin holes must be reamed to precise dimensional tolerances. Common use cases include fitting taper pins in shafts, gears, and mechanical assemblies where pin retention depends on a matched taper. The set provides coverage across 17 individual reamer sizes, allowing the technician to match the correct reamer to each taper pin designation without needing multiple individual purchases.

Key Features

• 17 taper pin reamers covering sizes 7/0 through 0 in a single set
• Helical flute, left-hand spiral, right-hand cut geometry for efficient chip evacuation
• High speed steel construction for durability across a range of ferrous and non-ferrous materials
• Bright polished finish reduces friction and aids in chip flow
• Straight shanks compatible with standard drill chucks and reamer holders
• Reamer diameters span 0.0666 inches to 0.1638 inches with corresponding small end diameters from 0.0497 inches to 0.1287 inches across the 7/0-to-0 range

Compatibility

Designed for reaming standard taper pin holes per ASME taper pin size designations 7/0 through 0 in metalworking, maintenance, and machine assembly applications.

Installation Notes

Taper pin reamers are typically used by machinists or maintenance mechanics using a hand brace, tap wrench, or low-speed drill press. Always secure the workpiece before reaming and apply cutting fluid appropriate for the base material to extend tool life and improve finish quality. Start with a pilot hole sized below the small end diameter and ream progressively to the target taper pin fit. Do not run taper reamers at high spindle speeds, as this accelerates wear on high speed steel tooling.