Jiayouy 4Pcs Luthier Tools Set Dual Scale Guitar Neck Notched Straight Edge String Action Gauge Ruler Fret Rocker Fret Leveling

4 Kinds of guitar repair tool: Different tools allow you to get more exact datas and these guitar luthier tools are good gifts to guitar technicians and guitarists to maintain and repair their instrument themselves in a short time, reducing buzzing; Good tools for electric guitar, acoustic guitar, bass, banjo and folk guitar, etc. Step 1 – Use a Fret Rocker to identify high frets Step 2 – Adjust the neck to a flat position, then sand or file the offending frets level. Step 3 – Recrown and polish your frets. Specifications: String Action Gauge Ruler: Application: measuring string height, frets, nuts, saddle, and other parts of a guitar. Fret Leveling Sanding Beam Rectangular Tube Dimensions: 400mm x 38mm x 25mm/15.8” x 1.5” x 1”. Attach 80 through 220-grits for radiusing and leveling the fingerboard, and 220 through 400-grits for leveling the frets. Guitar neck ruler : Size: 42 x 37 x 0.4cm/ 16.5 x 1.46 x 0.2inch Application: Good for synthesized 25.5 inch and 24.75 inch scale guitar or other 6 string instruments. Fret rocker: Size: 2.7 x 2.0 x 0.08 inch/ 10 x 5 x 0.2 cm Material: stainless steel Application: the fret rocker can span over 3 frets and can check if frets are on the same level.