ISP mndandanda ndi Internal kukula mtundu chitoliro beveling makina zoyendetsedwa ndi pneumatic kwa chitoliro awiri kuchokera 18mm kuti 850mm ndi zitsanzo za ISP-30,ISP-80,ISP-120,ISP-159,ISP-252-1,ISP-252-2,ISP-352-1,ISP-352-2,ISP-426-1,ISP-426- 2,ISP-630-1,ISP-630-2,ISP-850-1,ISP-850-2. Mtundu uliwonse uli ndi malire ogwirira ntchito. Zimapangidwa bwino kwambiri pakuwotcherera kwa chitoliro.
