here is an updated version of the free MCUtils CHOOK for Mastercam v9.1 SP1 / SP2: news: - support of the HSM toolpath functions from CIMCO's Mastercam HSM Performance Pack - Wheelmouse support - user def. Icon-Menues for Solids and OP-Manager MCUtils V9.1 (approx. 40 kb) ! ONLY for Mastercam Version 9.1 SP1/SP2 !