Gauge set including 3 relief sizes (.006”, .008”, .010”) for electric, acoustic, classical and bass guitar, made of stainless steel, high precision, without the annoying and messy oil found in From traditional gauge sets, laser-engraved sizes (inches and millimeters) and non-dislodge instrument type, easy-to-follow instructions printed on the handle, and an innovative tab to help, this gauge is part of our KKEP IT SIMPLE SETUP method. (KISS) using our precision gauges and tool sets.