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.