Thank you for viewing. This is the HOSCO fret setter TL-FS10. It is a tool for pinpointing and hammering in raised frets. I have only used it once. I am selling it because I don't use it. ▪️Features HOSCO fret setter. The tip has a recess and can be used with various types of frets. Size is 100mm x Φ7mm. ▪️Specs ■ Fret Setter ■ Brass ■ 100mm x Φ7mm Thank you.