This extension tube makes it easier to avoid obstructions when performing compression checks. Extends 8-1/2" to clear manifolds, harnesses, etc. For use with Eastern model E2A and E2M Compression Testers. 18MM threads fits Franklin & automotive engines.
3/16" Diameter OVERSIZE Universal Head (Flush) Head, .438-.500" Grip. Cherrymax® rivets are the industry standard blind rivets. They are structurally rated and approved for use on most airframes. 50 pieces per package.