Hi-Tech Instruments is a stocking supplier for plastics processing, packaging, food processing, metal casting, and mold making. They offer a range of products including heaters, thermocouples, controls, production and maintenance tools, equipment, pins, bushings, springs, stamps, cooling components, polishing tools, and die mold supply items. Additionally, they provide electronic repair services for temperature controls, timers, and hot runner controls. Hi-Tech Instruments serves as the stocking warehouse for DMS mold components and offers repair services and calibration for various modules and mainframes.