I-drill chuck yi-clamp ekhethekileyo esetyenziselwa ukubamba i-bit ejikelezayo; ngenxa yoku, ngamanye amaxesha ibizwa ngokuba yi-bit holder. Kwi-drill, ii-chucks zihlala zinemihlathi emininzi ukukhusela i-bit. Kwezinye iimodeli, udinga isitshixo se-chuck ukukhulula okanye ukuqinisa i-chuck, ezi zibizwa ngokuba yi-keyed chuck. Kwezinye iimodeli nangona kunjalo, awukho mfuneko yesitshixo kwaye unokukhulula ngokulula okanye uqinise i-chuck ngezandla zakho, ezi zibizwa ngokuba zii-keyless chucks. Phantse zonke iidrili ezingenazintambo zixhotyiswe ngee-chucks ezingenazitshixo. Nangona ukusebenza ngee-chucks ezingenazitshixo zikhethwa ngakumbi ngenxa yokulula kwazo, ii-chucks ezinezitshixo zibonelela ngokhuseleko ngakumbi ngakumbi kwizicelo ezinzima.