【Complete Dual-Pitch Connector Kit (3.0 mm + 4.2 mm)】Includes 84 sets of dual-row housings (2/4/6/8 pins), 360 phosphor-bronze terminals (male & female), and 3 de-pin tools. Covers both 3.0 mm (black) and 4.2 mm (white) connectors for versatile signal and power wiring. 【Micro-Fit 3.0 Connectors (3.0 mm Pitch / Black)】PA66 nylon housings resist –40 °C to 105 °C. Compatible with Molex Micro-Fit 3.0 series models (2-8 pin 43025 / 43020 series). Terminals support 20–24 AWG, 7 A per circuit. 【Mini-Fit Jr. Connectors (4.2 mm Pitch / White)】High-strength PA66 housings with locking latch ensure secure connections. Compatible with Molex Mini-Fit Jr. 5557/5559 (2-8 pin 39-01 series). Terminals fit 18–24 AWG, rated 9 A max. 【Durable & Service-Ready Components】Tin-plated phosphor-bronze and brass contacts offer excellent conductivity and corrosion resistance. Ideal for DIY electronics, battery packs, power modules and robotics. 【Fast & Safe Terminal Removal】Includes three professional pin extraction tools (JRCONDRK-D120 / D145 / D173) for quick terminal release and re-wiring. Easily correct connection mistakes or upgrade wiring without damaging the housings or terminals — saving time and extending connector lifespan. Ideal for technicians, makers and anyone building custom harnesses. The JRready ST6491 Dual-Pitch Connector Kit combines 3.0 mm Micro-Fit 3.0 and 4.2 mm Mini-Fit Jr. connectors in one organized set. It includes dual-row housings (2/4/6/8 pins), male and female crimp terminals for 18–24 AWG wires, and three professional pin extraction tools. Made from durable PA66 nylon and tin-plated contacts, these connectors deliver reliable electrical performance and secure fit under vibration and temperature stress. Perfect for DIY electronics, servers, battery systems, PC power wiring, and robotic projects.