Designed for medium-to-high-volume use, TruBind coil crimpers are an ideal tool for cutting and crimping plastic binding coils. They utilize two durable flat springs to keep the crimping tip opened to approximately 15mm, which makes them easier to operate than our economy coil crimpers. The flat spring design also prevents them from popping out of place, as some coiled springs are prone to do. TruBind coil crimpers have a precision tip that ensures accurate crimping and cutting on coil sizes ranging from 6mm to 50mm. They also produce an extra-long crimp to make the pages of bound documents even more secure. They are made from hardened steel that includes special additives that improve the tool's strength and durability while preventing corrosion.