- Adjustable Soldering Clamp Holder: Holds and fixes mobile phone motherboards and circuit boards during disassembly and repair. Suitable for electronic component repairs, computer motherboard repairs, instrument maintenance, circuit board soldering, and disassembly. - Multiple Sizes Clamping Jaws: Five clamping jaws of different sizes prevent displacement and provide secure clamping. Jaw sizes: 4 mm, 2 mm, 1.8 mm, 3 mm, and 2 mm. - 360° Rotatable Head: Rotatable head allows fixing the motherboard at any angle, enabling convenient and precise operation during repair and assembly. - Adjustable Opening Distance: Opening distance is adjustable to fit various board sizes; clamps boards up to 200 mm. - Use scenarios: - Soldering or component replacement on smartphone motherboards with stable, angle-adjustable support. - Disassembling or repairing a computer motherboard where secure, non-slip clamping is required. - Instrument maintenance or circuit-board soldering tasks needing precise positioning and stable support.