Performance Tool Compression Tester Spark Plug Adapters Set (4 Piece)
Kit contains the necessary sizes to test compression most gas engines
Snowmobiles, motorcycles, outboards, lawn equipment and much more
Fits our compression tester W80579 and others with a 14mm x 1.25 male thread
Rubber o-rings insure a positive seal and accurate readings
Made of steel with a coating of brass
Includes: 10mm x 1.0, 12mm x 1.25, 18mm x 1.5 and the special 16mm x 1.5 Ford adapter