- ERGONOMIC DESIGN - Mapangidwe a chala chachikulu cha Keystone amapereka chitonthozo chachikulu, kulimbikitsa kusokera kowonjezera, komanso kuwongolera bwino.
- KUSINTHA KWA ZOGWIRITSA NTCHITO - Magolovesi achikopa a nkhosa ndi omwe ali oyenerera bwino ntchito zong'ambika pang'ono monga kufolera, kukonza, kuwombera, kuyendetsa galimoto, kulima dimba, zida zamagetsi / zida zamanja, kugwiritsa ntchito zida, ndi zina zambiri!
- ZOTHANDIZA: Mapangidwe a chala chachikulu cha Keystone amawonjezera kusinthasintha komanso kusinthasintha, pomwe odulidwawo amayika msoko pamalo achilengedwe a dzanja, kukulitsa chitonthozo chonse.