Spring Perfection

Arm Bar Tuning Tool

★ ★ ★ ★

August. 18, 2013

This review is for: Hildbrant’s Spring Flake Adjustment Jig


This here is another tool that is super handy. If you change your machines springs, build machines, or are simply a tinkerer you need to have one of these. This tool is super awesome when adjusting your springs. Before I acquired this I would put my springs on the a bar, and tighten them up. Doing so would force the springs into my thumb as I held them in place. A little painful, haha. Then once on the machine, I’d have to hold everything else in place and get the A-Bar centered.


This jig is super awesome, and super easy to use. You just put your A-Bar together like normal, but only snug up the screw. Place the A-Bar into the jig so that the spring and front of the A-Bar are locked into the front of the jig. There is an upside down “T” shaped opening that will hold everything in place. You then slide the back piece into position and it will hold all your springs in place. Tighten up your screw, and away you go! Your A-Bar is ready to be placed onto your machine.


This tool is really great, but there are two things I don’t like about it. There aren’t any intructions that come with it—they are on the website—and it is made of plastic. If you look at the pictures it kind of looks like it is made of a more solid construction. Maybe some sort of metal. However, when you get it in it’s made of plastic. Don’t get me wrong it still works fine, but I was expecting more. It fits all standard size springs and A-Bars. My A-Bars I’ve had here I guess aren’t standard. I practically had to force them into the jig, then force it into position to use the tool. I haven’t tried using the A-Bars from their machines as they run so well I don’t want to take them apart.

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Don’t get me wrong their jig is still a fantastic buy. I just don’t think it’s worth the 8.99USD plus shipping that they charge. Even having to force some of my A-Bars in it still saves a lot of time, and the alignment is flawless. I wouldn’t trade it for anything, haha.


This is a must have if you’re a tinkerer, and works fantastic. It gets a 4 out of 5 because of the price, and it just isn’t quite what you think you’re getting when you look on the website. I do recommend it to everyone, and I show it off when I can.