.This precision straight edge is suitable for testing for distortion on cylinder heads and engine blocks during engine overhauls and rebuilds. Use with feeler gauges to check for distortion in engine blocks, cylinder heads, flywheels, main bearing saddles, cam bearing saddles, cam covers and bell housings.
.Allows you to simply and precisely check for unevenness in surfaces such as the cylinder head or individual cylinder heads. Allows you to check up to 6 cylinder heads.
Specifications    
- tolerance: < 0.05mm
- material: Carbon steel 
- dimensions: L.600xW.36xH.16mm