The PHOENIX CONTACT CRIMPFOX 6H crimping pliers are designed for both ferrules without an insulating collar, as well as ferrules with an insulating collar. They are compatible with industry standard ferrules specified under DIN 46228 Part 1 and Part 4. With a range of 0.14 mm² to 6 mm², these pliers provide a versatile solution for a wide range of wire sizes. The unlockable pressure lock ensures a secure and consistent crimping process, reducing the risk of faulty connections. Additionally, the lateral entry design of these pliers allows for easy access to confined spaces, making it convenient and efficient to work in tight corners. Overall, the PHOENIX CONTACT CRIMPFOX 6H crimping pliers offer reliable and precise crimping for both insulated and non-insulated ferrules, making them an essential tool for any electrician or technician.