Why Choose Our Straight Edge Ruler?. Precision straight edge with a tolerance of ±0.001" for accurate inspections. Allows for accurate detection of distortion on engine blocks, cylinder heads, and flywheels.
Straight Edge Ruler Engine Block Cylinder Head Inspection Guide Layout Tool 24"
Snap-on Tools USA NEW 6" Straight Edge 1/32" & 1/64" Grad. Steel Ruler RULER600