Hill Engineering has recently supplied two (2) cutting heads to a Canadian Manufacturer of automotive components for producing finished lengths of fuel line tubing. The ¾" Duo-Cut System provides a dimple-free shear for cutting off small diameter tubing. The system is widely used for manufacturing cut lengths of fuel line tube.Hill Engineering has recently supplied two (2) cutting heads to a Canadian Manufacturer of automotive components for producing finished lengths of fuel line tubing. The ¾" Duo-Cut System provides a dimple-free shear for cutting off small diameter tubing. The system is widely used for manufacturing cut lengths of fuel line tube.