Cottrell Issues New Service Bulletin In a continuous effort to improve its products, Cottrell issues a new service bulletin for some soft tie headramps. This bulletin will include adding a grab handle and hand hold to select headramps. Cottrell has mailed letters to effected customers along with the attached information packet. If you have any questions, please do not hesitate to contact our service center at (800)827-0132. Our Expertise is Your Advantage on the Road.