The electric tool adapter rod is formed in one shot on 104S/104L/105S/134L/164L cold heading machines, and the corresponding cold heading die and punch are developed according to the customer’s size requirements.
Our factory runs professional CNC grinding for all kinds of special-shaped punch pins: square punches, square punches with R corners, hexagonal punches, Torx punches and other custom header punches. With many years of cold heading tooling R&D experience, we design the process so the product can be cold headed in one shot without die rework, effectively avoiding surface defects such as smearing and material build-up during forming.
Send us the adapter rod print — we’ll develop the complete tooling set, from special-shaped punch pin to forming die.
This is the same development route we apply to automotive non-standard fasteners — special-shaped parts formed in one shot, with the cold heading die and special-shaped punch pin developed as one matched set.