I have been messing around making junk this past week as it's too cold outside to work in the shop. Today I was looking at getting a new Holley jet tool $24 bucks WTF??? so I decided to make one for super cheap. Had to put on the thinking cap and use what I had laying around and I cam up with this one which uses a 3 cent washer. Grind it flat then thin it out a little until it fits the jet, works great and you can use a bigger washer also if needed. Screw Holley and their overpriced tools.