A jig for profiling the end of an elongate workpiece, especially a coping or crown molding section, comprises a support for a sample to be copied, and for a profiling comb to be pushed against the sample to define a cam surface. A cutting tool can be mounted to follow a path defined by the cam surface, to cut the workpiece end to match the shape of the cam surface. The profiling comb is movable between a first position facing the sample support to form a profile and a second position in which the profile can contact the cam follower on the movable mounting. In its second position the comb extends at an acute angle to the longitudinal direction of the workpiece support, which is configured to support the workpiece at an acute angle about its longitudinal axis corresponding to the angle at which the comb is fixed.