Kufotokozera Kwachidule:

YT27 mtundu mpweya mapazi mtundu chisel thanthwe makina kuwala kwambiri mtundu kuwala, oyenera yonyowa mtundu kubowola ndi chisel kunsi ndi kutchera mabowo pa sing'anga olimba kapena olimba (f = 8-18) miyala. Bowo la chisel m'mimba mwake 34-45mm, kuzama koboola koyenera kumafika 5m. Ali ndi mawonekedwe pakuthyola kwamphamvu kwa kabowo, nthawi yayikulu yosinthira, zida zamiyala za chisel zomwe zimagwiritsidwa ntchito kwambiri pa njanji, malo osungira madzi, ntchito yoteteza dziko, kugwiritsa ntchito zida za FY250 ndi FT160A (kapena FT160B) yolemba mapazi amlengalenga , mwachidziwikire ndibwino kuposa zinthu zamtundu womwewo.