Hand Trim Blocks designed to score and crack the coaxial cable jacket at a precise length using a micrometer stop. The cable can then be re-inserted and trimmed down to the center conductor without scoring it.
The razor blade stops on top of adjustment ball bearings on either side of the center conductor. The micrometer adjustment can be reset to trim the teflon dielectric at a shorter length than the outer jacket dimension creating a two-step trim.
Adjustable ball bearings with set screws
Set trim to within 0.002" of the center conductor
Trim Teflon without scoring center conductor
Trim Teflon at a different length than the Jacket