Spi 91-471-3 Feeler Stock Roll 0.5 in Wide 10 Ft Steel

Product Description

The SPI 91-471-3 is a high carbon steel feeler stock roll used for precision gap measurement and shimming applications in mechanical assembly, engine work, and machine calibration. The roll measures 0.5 inches wide by 10 feet long with a thickness of 0.60 mm, giving technicians a continuous strip that can be cut to any required length. High carbon steel construction provides the stiffness and dimensional consistency needed for accurate feeler gauge work. Machinists, engine rebuilders, and maintenance technicians commonly use feeler stock when setting valve clearances, checking bearing clearances, or fitting precision assemblies.

This feeler stock roll is well-suited for both shop and field applications where custom-length gauge strips are needed. The 10-foot length allows multiple pieces to be cut from a single roll, making it practical for production environments or repeated use on a single job. Typical applications include engine valve train adjustment, gear lash measurement, die and mold fitting, and general mechanical tolerance verification across industrial and automotive trades.

Key Features

• 0.60 mm thickness for precise gap and clearance measurement
• 0.5 inch wide strip allows controlled contact surface across a range of fitment tasks
• 10-foot roll length provides material for multiple cuts from a single piece
• High carbon steel construction delivers consistent stiffness and durability
• Continuous roll format — cut to any required length on the job

Compatibility

Designed as a general-purpose feeler stock roll suitable for use in automotive, industrial, and mechanical maintenance applications where 0.60 mm thickness and 0.5 inch width meet the required specification.

Installation Notes

Cut to the required length using appropriate metal-cutting shears or snips. Deburr cut edges before use to prevent measurement error or surface damage. Handle feeler stock with clean, dry hands or gloves to avoid introducing oils that could affect gauge accuracy. Store the roll flat or loosely coiled to prevent permanent set.