Starrett 666S-2 Feeler Stock Roll 0.002 in Stainless Steel

Product Description

The STARRETT 666S-2 is a stainless steel feeler stock roll used for precision gap measurement and clearance checking in mechanical, HVAC, and industrial service applications. The roll measures 0.002 inches thick and 0.5 inches wide, with a total length of 25 feet, giving technicians ample material for cutting custom-length feeler strips on the job. Stainless steel construction resists corrosion and maintains dimensional stability across a wide range of service environments. Techs use this stock to verify valve clearances, check flange gaps, and confirm tolerances wherever a standard blade gauge cannot reach or where a specific custom width is required.

This feeler stock roll suits residential and light commercial maintenance tasks as well as industrial equipment servicing. It is commonly used by HVAC technicians checking blower wheel clearances, compressor valve seats, and heat exchanger gaps, as well as by plumbers and pipefitters verifying flange and gasket seating. The 25-foot roll length supports multiple jobs or repetitive cuts without frequent restocking. The 0.5-inch width accommodates most standard clearance-checking applications without trimming.

Key Features

• 0.002-inch thickness for ultra-fine gap and clearance measurement
• 25-foot roll length provides material for multiple cuts and jobs
• 0.5-inch width fits standard clearance-checking applications
• Stainless steel construction resists corrosion and deformation
• Flexible roll format allows custom-length strips to be cut as needed

Compatibility

Designed as a general-purpose feeler stock roll suitable for HVAC, mechanical, and industrial service applications requiring 0.002-inch clearance measurement strips.

Installation Notes

Cut strips to the required length using tin snips or metal shears rated for thin-gauge stainless steel. Deburr cut edges before use to avoid scratching precision surfaces or injuring hands. Always isolate and de-energize equipment before inserting feeler stock into any moving assembly or energized component gap. Dispose of metal trimmings properly to prevent foreign object damage in mechanical systems.