Product for secure holding and stable work on motherboards, circuit boards and PCBs. Designed for , soldering and testing of mobile phone mainboards and other small electronic boards. Key benefits Secure clamping: adjustable spring buckle and rotatable screw allow precise, repeatable fixation of a wide range of board sizes and thicknesses. Protects circuit boards: anti slip bottom pads reduce movement and help prevent surface scratches or other damage during work. Durable base: cast steel base resists deformation for long term stability and reliable support during soldering and testing. Improved workflow: holds boards steady for hands soldering, component replacement and electrical testing, helping improve success rates. Main features Function: fixture for motherboard , soldering and testing; also suitable as a general PCB clamp and mainboard fixture. Compatibility: suitable for mobile phone motherboards, mainboards, PCBs and various small circuit boards. Adjustment: spring buckle and rotatable screw enable quick clamping and fine position control. Base material: cast steel base for rigidity and vibration reduction. Protection: anti slip pads on the base protect board surfaces and reduce slippage. Practical applications Mobile phone bench: secure a phone motherboard for component replacement, micro soldering or BGA rework. PCB assembly and soldering: hold small PCBs steady while soldering connectors, chips or surface mount components. Electronic testing and inspection: keep boards fixed for continuity checks, probing and functional testing to speed diagnostics. Why choose this fixture Designed specifically for small electronics work where stability and board protection matter. Simple adjustments let technicians clamp boards quickly and keep hands for precise soldering and testing. Robust cast steel construction plus non slip pads combine durability with board safety for consistent results. Contents and usage notes Fixture with adjustable spring buckle and rotatable screw, cast steel base and anti slip bottom pads. Place board on pads, adjust spring buckle and tighten screw until board is secure. Avoid over tightening to prevent board stress. Clean pads and base regularly to maintain grip and prevent transfer of debris to boards.