JOREST Watch Battery Replacement Tool Kit is perfect for opening watch back cases, watch battery & strap replacement, jewelry work, eye glasses repair and electronics repair. How to open different watch back cases? The watch case holder can be used with other tools in the kit to help fix the watch and reduce the risk of sliding & scratching the watch. Used for watches with a diameter of up to 50mm. Find the slot of the watch back case.Insert the pry opener into the slot and open it with little pressure. Warm note: This type of watch back may require an additional purchase of a press to close it. Roll the silver adjustment wheel of the blue case opener to set the drill bit spacing to match the grooves on the case back.After adjustment, turn the blue case opener slowly and firmly to open the watch case. Choose a screwdriver bit that matches your watch screw.Turn the screwdriver to open the watch cover. Warm note: The cover at the end of the screwdriver can be pulled out. and the inside can store other screwdriver bits. Watch Band Tool Kit Watch Band Tool Kit Watch Repair Tool Kit Watch Repair Tool Kit Watch Spring Bar Tool Kit Watch Battery Replacement Tool Kit Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 11,298 4.6 out of 5 stars 8,034 4.5 out of 5 stars 5,219 4.6 out of 5 stars 15,495 4.5 out of 5 stars 2,413 4.4 out of 5 stars 9,933 Price $9.99$9.99 $7.99$7.99 — no data $13.99$13.99 $6.99$6.99 $6.99$6.99 Configure Plus Basic Basic Plus Basic Basic Adjust the length of the metal bracelets ✓ ✓ ✓ ✓ - no data - no data Adjust the length of the leather straps ✓ - no data - no data - no data - no data - no data Watch strap replacement ✓ ✓ ✓ ✓ ✓ - no data Watch battery replacement - no data - no data ✓ ✓ - no data ✓ Used for what type of watch cases - no data - no data 3 types 3 types - no data Watch cases with grooves