This High Quality adjustable case opener is extra sized(18~56mm). 

To fit most water proof screw on watch cases, even jumbo size watches.

This tool have 4 sets of bits(12pcs)

Package included: 3 for polygonal case 3 for slotted case, 3 for case , 3 for oyster. 

We sell a range of great value tools and parts for watch, clock and Jewellery craft. Please see in shop.

Please buy with confidence if you are not happy we offer a full 60 day refund for any reason, just return the item.