The SanTus ST-12 High-Quality Non-Magnetic Metal Tweezer is a precision hand tool engineered for electronics assembly, SMD soldering, microscopic component placement, and fine mechanical repair. Manufactured from premium surgical-grade non-magnetic stainless steel with an anti-acid, anti-corrosion finish, the ST-12 features a stiff, high-elasticity straight wide-body tip design that delivers superior clamping force without bending or flexing. It is widely used by PCB rework technicians, watchmakers, jewelers, and hobbyists for steady, fatigue-free handling of micro-components.

Specifications

• Brand / Model: SanTus ST-12 (Original High-Quality Series)
• Product Type: Precision Straight High-Elasticity Tweezer
• Tip Profile: Straight, Rigid Sharp Point with Reinforced Wide-Shank Taper
• Material: High-Grade Non-Magnetic Stainless Steel (HRC 40+)
• Magnetic Properties: Non-Magnetic (Resists magnetic field pickup and static adhesion)
• Surface Treatment: Fine Polished Matte / Anti-Glare Anti-Corrosion Finish
• Acid & Chemical Resistance: Anti-Acid / Alkali / Solvent Resistant
• Overall Length: Approx. 135mm (5.3 inches)
• Body Width: Approx. 10mm (Ergonomic wide grip area)
• Elasticity / Hardness: High tensile elasticity with deformation resistance
• Operating Applications: SMD rework, micro-soldering, laboratory inspection, and precision mechanics

Features

• Non-Magnetic Stainless Construction: Prevents micro-ferrous screws, magnetic inductors, and tiny metal parts from sticking to the tips during delicate assembly.
• High-Strength Rigid Shank: The ST-12 profile has a broader, thicker shank than standard fine tweezers, providing firm clamping power and preventing the tips from spreading open under pressure.
• Precision Ground Alignment: Perfectly matched, ultra-parallel tip edges ensure secure gripping of the smallest 0402, 0603, and 0805 SMD components without slipping or catapulting parts.
• Ergonomic Anti-Fatigue Balance: Calibrated spring tension provides an effortless pinch feel, minimizing hand fatigue during prolonged soldering and inspection sessions.
• Corrosion & Acid Resistant: Resists chemical attack from active soldering fluxes, solder pastes, cleaning solvents, and isopropyl alcohol (IPA).

Common Applications

• SMD & SMT PCB Assembly: Precision placement and holding of chip resistors, capacitors, diodes, and ICs during hot-air rework or hand soldering.
• Mobile Phone & Electronics Repair: Handling jumper wires, micro-connectors, and ribbon cables in smartphone, tablet, and laptop motherboards.
• Microcontroller & DIY Prototyping: Component positioning on dense Arduino, ESP32, and custom sensor breakout boards.
• Watchmaking & Fine Jewelry: Handling delicate balance wheels, micro-springs, watch gears, and gemstone setting.
• Laboratory & Medical Inspection: Specimen manipulation, micro-dissection, and cleanroom handling.

Usage Tips

• Tip Protection: Always store the tweezer with the supplied plastic protective sleeve over the tips to prevent accidental drops from blunting the alignment.
• Cleaning: Clean the tips regularly using isopropyl alcohol (IPA) and a lint-free cloth to remove flux residue, solder splatter, and skin oils.
• Avoiding Pry Stress: Do not use the precision tips as a prying tool or wire-bending plier, as extreme lateral force can compromise the fine tip alignment.
• Soldering Clearance: While heat-resistant, avoid keeping the bare tips directly in a high-temperature solder puddle for extended periods to preserve the metal temper and spring tension.