This Horotec 7 piece Rolex die set makes opening case backs easy. Designed to open Rolex oyster case backs they come in sizes 18.5mm, 20.2mm, 22.5mm, 26.5mm, 28.3mm, 29.5mm and 36.5mm.
Horotec watchmakers dies are easily interchangeable.
This set will work with all Horotec screw back openers including:
#59.7360 Deluxe Screwback Case Opener
#59.7021 2 Sided Handle for Case Opening Dies
#59.7305 Palm Handle for Case Opening Dies