Starrett 57097 Parallel Feeler Gage Set 31 Piece

Product Description

The STARRETT 57097 is a 31-piece parallel feeler gage set designed for precise gap measurement in a wide range of mechanical and trade applications. Each leaf is manufactured from tempered steel and ground to a parallel profile, providing consistent thickness across the full length of the blade. The set spans from 0.0015 inches to 0.035 inches, with individual leaves measuring 3.0313 inches long and 0.5 inches wide. Machinists, millwrights, HVAC technicians, and automotive service pros rely on feeler gages like this to check valve clearances, spark plug gaps, bearing tolerances, and component alignments where precise fit verification is required.

This set is suited for both shop and field use. The parallel leaf style makes it appropriate for measuring uniform gaps where the clearance does not taper, such as checking mating surfaces on machinery, verifying shim stack thickness, inspecting flange faces, or setting ignition points and burner electrode gaps on HVAC equipment. The 31 leaves cover a fine, graduated range of increments, reducing the need to stack multiple leaves for most common gap checks.

Key Features

• 31 tempered steel leaves cover 0.0015 to 0.035 inches in closely spaced increments
• Parallel leaf profile ensures uniform thickness from tip to pivot for accurate gap readings
• Leaf length of 3.0313 inches provides reach into confined spaces
• Leaf width of 0.5 inches balances rigidity with access in tight clearances
• Tempered steel construction resists wear and maintains calibration over repeated use

Compatibility

Designed as a general-purpose parallel feeler gage set suitable for mechanical, HVAC, automotive, and industrial maintenance applications requiring gap measurement from 0.0015 to 0.035 inches.

Installation Notes

Feeler gages require no installation but should be handled and stored carefully to prevent bending or nicking the leaves, which would affect measurement accuracy. Select the appropriate leaf or combination of leaves by sliding them into the gap without forcing — a correct-size leaf should pass with light, consistent drag. Clean leaves after each use to remove oil, debris, and corrosion. Follow equipment manufacturer specifications for all target clearance values; do not use worn or visibly deformed leaves for critical tolerance work.