Molex Crimp Tools & Dies Crimper 608821 - Molex 638190901, The Molex 638190901 crimper is a precise crimping tool designed for high-quality electrical connections. It features ergonomic handles and a robust build for durability and reliable performance. This crimping tool is ideal for professional use in electronics and electrical applications. Molex 638190901 Crimper For Mini-fit Jr. Terminals 18-24 AWG