Phone Motherboard PCB Fixture Holder Repair Clamp Circuit Board Maintenance Platform for Phone Circuit Board Soldering Repair Tool. Features : Adjustable card mouth, easy to adjust to the best width and intensity; Leaving plastic anti-skid granules screw fixing hole and bottom; To prevent the occurrence of displacement clamp in operation. Equipped with a variety of tools to repair the phone to use, more than one type of single screw Scope of application: maintenance of mobile phones and digital products