7" Adjustable Steel Watch Back Opener Wrench Tool, Watch Repair Tool

7" Adjustable Steel Watch Back Opener Wrench Tool, Watch Repair Tool

• Adjustable watch back cover opener can easily remove or screw down the waterproof watch back cover to replace the battery or repair the watch.
• It can open extra wide size case backs up to 53mm.
• Watch Back Case Cover Opener Adjustable Remover Repair For Invicta Large cases upto 55mm.
• (NOTE : It be used to open and close most screw-in watch back cases, can not be used for watches that pry open the bottom cover directly).
• It is a necessary tools for watchmakers and watch repairing workers.