Starrett 666S-5 Feeler Stock Roll 0.005 in Stainless Steel

Product Description

The STARRETT 666S-5 is a stainless steel feeler stock roll used to measure and set precise clearances in mechanical assemblies, HVAC equipment, and industrial machinery. At 0.005 inches thick and 0.5 inches wide, it provides a consistent, calibrated shim surface for gap measurement, valve clearance checks, and tight-tolerance fitting work. The 25-foot length gives technicians and machinists extended material for repeated cuts and on-the-job applications. Stainless steel construction resists corrosion and holds dimensional stability in both shop and field conditions. This roll format allows the user to cut custom-length strips as needed.

This feeler stock roll is suited for HVAC service, mechanical contracting, and precision maintenance work where gap measurement or shimming is required. Common applications include setting valve clearances, checking bearing clearances, and fitting components during equipment assembly or overhaul. The 0.005-inch thickness targets fine-tolerance work across residential and commercial mechanical systems. It is used by HVAC technicians, millwrights, and general mechanical trades working on rotating equipment, compressors, and related machinery.

Key Features

• 0.005 inches nominal thickness for fine-tolerance gap measurement
• 0.5 inches wide strip allows easy insertion into tight clearances
• 25-foot roll length supports multiple cuts and extended field use
• Stainless steel material resists corrosion and holds dimensional accuracy
• Roll format enables on-site trimming to any required length

Compatibility

Designed as a general-purpose feeler stock roll suitable for use across mechanical, HVAC, and industrial maintenance applications requiring 0.005-inch thickness shim or gap-measurement material.

Installation Notes

Cut strips to required length using metal shears or aviation snips. Deburr cut edges before use to avoid measurement error or surface damage. Always depressurize, de-energize, or shut down equipment before accessing clearance points. Handle stainless steel strip with care to avoid edge cuts during handling.