All-metal watch case opener has two sides and opens up to 40mm. Center screw allows quick-adjust for a variety of notches and slots on case backs. Each side has different jaws - straight/1.6mm thick and beveled/2.7mm thick.
- Use to open and close screw-on watch casebacks
- Easy adjust with center screw
- Maximum opening: 40mm
- Overall length is 3.75" inches (93mm)