Drill chuck ndi chotchinga chapadera chomwe chimagwiritsidwa ntchito pogwira pozungulira;chifukwa cha ichi, nthawi zina amatchedwa bit holder.Pobowola, chucks nthawi zambiri amakhala ndi nsagwada zingapo kuti ateteze pang'ono.Mumitundu ina, mumafunika fungulo la chuck kuti mumasule kapena kulimbitsa chuck, izi zimatchedwa ma keyed chucks.Mu...
Werengani zambiri