Precision Brand 19400 Feeler Gage 0.011 in Parallel Leaf

Product Description

The PRECISION BRAND 19400 is a parallel-leaf feeler gage designed for precise gap measurement in mechanical and industrial service work. The leaf measures 0.011 inches thick, 0.5 inches wide, and 12 inches long, providing the reach needed for checking clearances in confined assemblies. Constructed from high carbon steel, this feeler gage delivers consistent stiffness and resistance to deformation under repeated use. It is a replacement-style leaf sold individually and is well suited for technicians who need to restock or replace worn leaves in an existing feeler gage set.

Feeler gages of this type are used across HVAC, automotive, industrial maintenance, and mechanical service applications wherever precise gap tolerances must be verified. Common tasks include checking valve clearances, spark plug gaps, bearing end-play, and component alignment. The 12-inch parallel leaf format is a standard configuration that fits most multi-leaf feeler gage handles and works equally well as a standalone flat gage stock. This part is appropriate for use by HVAC technicians, millwrights, machinists, and general maintenance trades.

Key Features

• 0.011-inch thickness for precise gap measurement at tight tolerances
• Parallel leaf style — uniform width along the full 12-inch length
• High carbon steel construction for durability and consistent flex resistance
• 0.5-inch width provides a stable contact surface for accurate readings
• 12-inch length allows reach into deep or recessed assemblies
• Sold as individual replacement leaves; package quantity of 12 per order

Compatibility

Designed as a standard replacement parallel leaf for use with multi-leaf feeler gage sets and as standalone flat gage stock in mechanical and industrial service applications.

Installation Notes

Feeler gages are a hand-measurement tool and require no installation in the traditional sense. Before taking gap measurements on live equipment, power down or de-energize the assembly as required by applicable safety procedures. Keep gage leaves clean and free of burrs — a damaged leaf surface will produce inaccurate readings. Store leaves flat and avoid bending to maintain dimensional accuracy over time.