Taper Reamer 2in Per Ft.

The Allstar Performance Taper Reamer 2in Per Ft. (SKU ALL 11172) is a precision steel reaming tool engineered for automotive machine work, engine building, and precision manufacturing. This tool is used to enlarge and finish holes with a controlled taper, producing smooth, accurately sized bores critical for fuel injector seats, valve guides, and other engine components that require precise cylindrical tolerances.

The 2.000 inch per foot taper specification indicates a gradual, controlled expansion rate—essential when finishing holes where dimensional consistency directly affects engine performance and component fit. The steel construction provides the hardness and wear resistance needed for repeated use on cast iron, aluminum, and other engine block materials. At 0.5 lbs and measuring 3.95 x 1.15 x 12 inches, this reamer is compact enough for workshop use while delivering the cutting geometry necessary for professional-grade results. The taper design allows for controlled depth of cut, reducing chatter and producing the smooth surface finish that precision engine work demands.

This reamer is intended for engine builders, machine shops, and serious automotive enthusiasts working on performance engines, restorations, or precision boring operations. Whether preparing cylinder heads for fuel injector installation, sizing valve guide bores, or finishing other tapered holes where accuracy is non-negotiable, this tool delivers the control and precision required. Allstar Performance is a recognized supplier of performance engine components and machine tools to the automotive racing and machine shop community.

Taper reamers are essential in any serious machine shop because they produce consistent, repeatable results that cannot be achieved with drills or standard reaming tools alone. The 2-inch-per-foot taper is a standard specification in automotive machining, ensuring compatibility with common hole geometries used throughout engine design.