RF-FT03 RF4 Multi-Functional Mobile Phone Repair Fixture, also known as a PCB board holder or soldering clamp. It is designed for repairing mobile phone motherboards, including IC chips and CPUs. Key features include bidirectional movement for chip and CPU motherboard use, and a large size supporting motherboards up to 70mm in length. It features honeycomb heat dissipation and high-temperature resistance to protect chips during soldering. The three-axis clamp design makes it suitable for holding special-shaped motherboards.