The Harmonica Service Set contains everything you need for basic harmonica maintenance. In combination with our online tutorials, this small assortment of high quality tools for tuning, reed adjustment and valve replacement is also suitable for players taking their first steps in harmonica maintenance. The Instant Workshop Toolkit is an extended version of the basic set, featuring specialized tools for reed replacement. Recommended for experienced harmonica technicians only. Please be aware that harmonica maintenance and repair demands a light touch and needs to be learned. We recommend working on an old instrument first and accept no liability for any consequences arising from use of these tools or the techniques described in the online tutorials.