Starrett 52820 Feeler Stock Roll 0.023 in Tempered Steel

Product Description

The STARRETT 52820 is a tempered steel feeler stock roll used to measure and set precise gaps in mechanical assemblies, HVAC components, and industrial equipment. At 0.023 inches thick and 0.5 inches wide, this roll provides a consistent, flexible strip that technicians can cut to length as needed. The 20-foot length supplies enough material for extended shop use or multiple job sites. Tempered steel construction delivers the hardness and spring-back required for accurate, repeatable feeler gauge work. HVAC technicians, machinists, and maintenance professionals rely on feeler stock when setting valve clearances, air gaps, burner orifice positions, or other close-tolerance fits.

This feeler stock roll suits residential and light commercial maintenance applications where gap measurement or shimming is required. It is commonly used during furnace, boiler, or air handler servicing to verify clearances on burner components, draft diverters, and mechanical linkages. The roll format allows the installer to size each piece to the specific task rather than being limited to fixed-length blades. Trade professionals keep rolls on hand as a cost-effective bench stock item for general-purpose measurement and adjustment work.

Key Features

• Tempered steel construction provides consistent hardness and accurate spring-back for repeatable gap measurement
• 0.023 inch thickness suits close-tolerance clearance checks on HVAC and mechanical components
• 0.5 inch width allows easy insertion into tight access points
• 20-foot roll length supports multiple cuts and extended use across jobs
• Roll format enables field-cut lengths tailored to each specific application

Compatibility

Designed as a general-purpose feeler stock roll suitable for gap measurement and shimming tasks in HVAC, plumbing, electrical, and industrial maintenance applications where a 0.023 inch tempered steel strip is required.

Installation Notes

Feeler stock is installed by machinists, HVAC technicians, and maintenance trades using standard tin snips or metal shears to cut the strip to the required length. Always deburr cut edges before inserting the strip into equipment to avoid damaging mating surfaces. Power down or lock out any equipment before using feeler stock to check internal clearances. Handle tempered steel strip with care, as cut edges are sharp.