Description
MM NC 4-42 COMBINATION Thread Pitch Gauge
American Imperial 4-42TPI
&
.25-6mm Metric
60º - Made of High quality tool Steel.
Great for finding the threads per inch of your bolts!
Used to accurately measure pitches (TPI) on screw threads (external & internal)
Range: 4 to 42TPI,
• 52 Leaves / blades for measurement, individually marked sizes on each
• Easily adjusted