I-drill chuck iyi-clamp ekhethekile esetshenziselwa ukubamba ibhithi elijikelezayo;ngenxa yalokhu, ngezinye izikhathi ibizwa ngokuthi i-bit holder.Kuma-drill, ama-chucks ngokuvamile anemihlathi eminingana ukuze avikele kancane.Kwamanye amamodeli, udinga ukhiye we-chuck ukuze ukhulule noma uqinise i-chuck, lezi zibizwa ngokuthi ama-keyed chuck.Kwamanye amamodeli, awudingi ukhiye futhi ungakhulula kalula noma uqinise i-chuck ngezandla zakho, lezi zibizwa ngokuthi ama-keyless chuck.Cishe wonke ama-drill angenazintambo afakwe ama-chucks angenakhiye.Nakuba ukusebenza ngama-chuck angenakhiye kukhethwa kakhulu ngenxa yobulula bawo, ama-chuck anokhiye ahlinzeka ngokuvikeleka okwengeziwe ikakhulukazi ezinhlelweni zokusebenza ezinzima.