Small Hole Gauge Set | SHG-4

See if rebuilding or replacement is needed by checking actual guide wear. Check guide bosses for proper interference fit during replacement. Check and maintain stem to guide ID clearance.

• 4 sizes of gauges measure valve guide ID and other holes
• .125" to .500" diameter
• Insert in hole and expand split probe by turning knurled knob
• Remove and measure with a micrometer
• Storage case included