ESP Multi Spanner

Not only do I use this every day in my shop, but I require my students buy one as well. It's great for tightening any nuts whether it be pots, tuner bushings, or jacks. Also drop an allen wrench in the hole of an acoustic jack to hold it and use this to tighten the nut. It'll also raise and lower Gibson style saddle nuts.

very useful tool for tight spaces like under guitar knobs or tuning pegs, pedal and amp knobs. highly recommended tool.

This neat little tool has many uses. As mentioned in the summary, it fits easily under control knobs. That alone makes it worth the price.

Bought two of these wrenches so that I can tighten thin nuts against one another. They work a treat and get in almost anywhere.

This tool works well, however it will chew up the hardware. My suggestion is to use a different material that’s softer than metal. Good idea, smart and functional tool, bad out come. Back to the drawing board!

It is amazing how useful this little tool, I think that should be present in a maintenance team of guitars and amps, I recommend

I am A retired Marine Corps Musical Instrument Repair Technician. I continue my skills in private practice. Your website, newsletter,tools and services are excellent resources for any novice or skilled technician.

Everyone needs one of these in their essential toolbox. These make it easy to tighten loose tuning machines and switches. It has already paid for itself.

This is ok. It doesn't seem to work as well as they describe and I have scratched some blots with it. It may be user error LoL. Although after saying that it is a valuable tool for those hard to reach bolts like on your bridge!

Low profile and works well. Highly recommended when used in conjunction with the "Jack The Gripper" tool.