This versatile watch repair kit comes with a complete set of watch repair tools to meet professional and general watch repair needs throughout the repair process. This watch repair kit is suitable for opening waterproof watch bands up to 34 mm. The metal frame is made of cast iron and can be mounted as a stable bench. This overpressure tool is very useful for closing the snaps on the back of the watch and installing flat mineral crystals. This unique nylon mold has straight walls and will not scratch or break the crystal. Anti-magnetic stainless steel tweezers for removing and inserting batteries. Small, lightweight, easy to use and durable. With a portable storage bag, the tool kit can be carried with you.