Covers bores from 2.90″-5.50″ so that you can consistently and accurately measure piston ring end gap

Places rings 1” below the deck to get past head bolt distortion

How to use:

1.Loosen thumbscrews slightly and insert the three round pegs into cylinder bore until the bottom body of the tool rests flat against the cylinder deck

2.Slide pegs outward to gently meet the inside of the cylinder bore walls, and tighten thumbscrews

3.Remove tool and insert piston ring into cylinder bore

4.Use ring squaring tool to push ring down evenly until body of tool is flat against cylinder deck

Feature:

No extra tools required

Change bore sizes in seconds

Note:

Please carefully check all the product information to make sure this is what you want before placing an order