Understring Radius Gauges

Regular price $15.99

Fast, accurate bridge saddle adjustment!
These handy set 8 of gauges comes in all popular fingerboard radii. (7¼", 9½", 10", 12", 14", 15", 16" and 20"). They can be used to accurately measure fret board radius, saddle radius nut radius from either the top or the bottom radius surface.
Set of 9 now includes new 17" radius for Ibanez guitars!
Standard width covers 6-string guitars and most 4-string basses—the gauges span string spreads up to 2-5/8" (66.68mm). Extra-wide covers string spreads up to 3-3/4" (95.25mm)—enough for 4-string, 5-string, and many 6-string basses. They'll also handle 7-string and 8-string guitars.
Precision laser-cut from .051” (1.30mm) stainless steel with each being etched with the radius.

Shipping & Return

  • Shipping


For orders from the United States, we ship them from the US, usually ship by USPS First Class (3-7 days), FedEx (4-7 days) or UPS Ground.
For orders from other counties except the United States, We ship your order from China, Shipping time is about 10-18 business days to arrive for most countries, and we also have Express shipping way if you want it to be faster, It takes around a week to arrive. All shipping methods are trackable.

We will send a shipping email with the tracking number to you once your order shipped.

  • Return
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it. You’ll also need the receipt or proof of purchase. To start a return or you have any return question, please contact us at

Damages and issues
Please contact us if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.