HOSCO Guitar Builder/Luthier Supply for sale in the USA

At least 20 eBay results for HOSCO guitar kits
Hosco Fret Dressing -  Medium - TL-FE2 for sale

Hosco Fret Dressing - Medium - TL-FE2

Hosco TL-FF Fret Crown Files - Small for sale

Hosco TL-FF Fret Crown Files - Small