P8DA Piano Tuning Tools Repair Tools Ideal for Apprentices Students Teachers Trainers for Professional Piano Tuners Portable OOTDTY Features: 100% brand new and high quality new piano tuning kit , which allows you to properly tune your piano. High temperature quenching of 45 steel makes it more durable. This is an indispensable tool for piano players to perform piano tuning work. We believe you will be satisfied with this. The piano tuning tool kit for your own use at home saves money and encourages more frequent tuning checks. The piano tuning kits set contains any tools you need to tune your piano as tuning hammer, a total of 9 professional tools. Specification: Material: 45 Steel Mixed Size Package Includes: 9 Pieces Tools in a Set note: Due to manual measurement, there may be an error of 0-1cm.