MiriamSong Professional Piano Tuning Kit - The Best Tuner Set Including Universal Star Head Hammer, Mute tools, Felt Temperament Strip and Case

eBay advertises the same MiriamSong kit and says a free tuning guidebook can be downloaded after purchase... does the same offer exists for Amazon?

Do you usually use the Tuning fork in this set or electronic tuning fork (like tuning app)?

Can I use this kit to tune a grand piano

Can I tune a square shaped pen with this hammer