Precision Brand 19730 Steel Feeler Gage 0.030 in Blade

Product Description

The PRECISION BRAND 19730 is a single-blade steel feeler gage machined from close-grain, high-carbon spring steel that has been ground and polished to precision tolerances. The blade measures 0.5 inches wide by 12 inches long with a thickness of 0.030 inches, making it a reliable go/no-go and gap-measurement tool for trade professionals who need repeatable, accurate readings. Machinists, HVAC technicians, and millwrights rely on feeler gages like this one to set valve clearances, check bearing tolerances, align components, and verify gap dimensions during equipment installation and service.

This feeler gage is suited for workshop and field applications where a single precision-thickness blade is needed rather than a full set. Common use cases include checking spark plug gaps, setting burner electrode spacing on gas-fired equipment, measuring compressor valve clearances, and verifying alignment tolerances on rotating equipment. The 12-inch blade length provides reach into confined spaces, and the 0.5-inch width suits standard slot and gap configurations found in both residential and light commercial mechanical systems.

Key Features

• Ground and polished high-carbon spring steel construction ensures consistent blade thickness across the full 12-inch length
• 0.030-inch blade thickness for precise gap measurement in a common trade-service dimension
• 0.5-inch blade width fits standard clearance slots and confined access points
• Close-grain steel stock resists deformation under repeated flexing and insertion
• Single-blade format allows targeted use without managing a full gage set

Compatibility

Designed as a general-purpose precision feeler gage blade suitable for mechanical, HVAC, and industrial service applications where a 0.030-inch thickness measurement is required.

Installation Notes

Feeler gages are installed and removed by hand without tools. Insert the blade without forcing or bending it beyond its natural flex range, as kinking will compromise measurement accuracy. When checking clearances on powered equipment, de-energize and lock out the system before inserting the gage blade near rotating or energized components. Wipe blades clean and lightly oil them after use to prevent surface corrosion that can affect tolerance accuracy.

Technical Specifications

• Blade Thickness: 0.030 inches
• Blade Width: 0.5 inches
• Blade Length: 12 inches
• Material: High-carbon spring steel
• Finish: Ground and polished
• Weight: 0.73 pounds

Standard Information

• Brand: PRECISION BRAND
• Manufacturer Part Number: 19730