Spi 91-455-6 Feeler Stock Roll 0.04mm 1/2 in High Carbon Steel

Product Description

The SPI 91-455-6 is a high carbon steel feeler stock roll used for precise gap measurement and thickness gauging in mechanical and fabrication work. The roll measures 0.5 inches wide and 10 feet long, with a thickness of 0.04 millimeters, allowing technicians and machinists to cut custom-length strips to suit the task at hand. High carbon steel construction provides the stiffness and dimensional stability needed for accurate feeler gauge work. This type of stock is commonly used by machinists, millwrights, HVAC technicians, and maintenance professionals who need repeatable gap or clearance measurements.

Feeler stock rolls are used across a wide range of applications including checking valve clearances, setting spark plug gaps, verifying bearing tolerances, and measuring alignment gaps on mechanical assemblies. The 10-foot length provides enough material for multiple jobs or for producing a set of custom feeler strips. At 0.5 inches wide, this roll suits both general and tight-access measurement work. It is appropriate for use in residential, commercial, and industrial maintenance environments.

Key Features

• 0.04 mm thickness for fine gap and clearance measurement
• 10-foot roll length provides material for multiple custom-cut strips
• 0.5-inch width suits general and restricted-access applications
• High carbon steel construction delivers rigidity and dimensional consistency
• Roll format allows field cutting to any required length

Compatibility

Designed as a general-purpose feeler stock roll suitable for use in mechanical maintenance, HVAC, fabrication, and machining applications where precise gap measurement is required.

Installation Notes

Cut strips to the desired length using appropriate metal shears or snips. Edges after cutting may be sharp — deburr before handling. No special tools are required for use, but calipers or a micrometer should be used to verify thickness if tolerance-critical work is involved. Store the roll flat or on a clean spool to prevent kinking or distortion that could affect measurement accuracy.