I-20 mm yezandla yesandla, eyaziwa nangokuthi i-handheld liprimper, iyithuluzi elisetshenziselwa izixhumi ze-crimp noma i-compress izixhumi ezihlangothini zezintambo noma izintambo. Isetshenziswa kakhulu ezinhlelweni zikagesi nezokuxhumana ngocingo ukudala ukuxhumana okuphephile nokunokwethenjelwa.
Ama-criners ngesandla ngokuvamile aqukethe izibambo ezimbili ezinemihlathi noma efa emaphethelweni. Ukufa kwenzelwe ukufanisa izinhlobo ezithile zesixhumi nobukhulu. Ukuze usebenzise i-shripper yesandla, ubeka isixhumi esikupheleni kocingo noma ikhebula bese usibeka phakathi kwemihlathi ye-cripper. Lapho-ke, ngokuncipha izibambo ndawonye, imihlathi ihlangana, ifaka ingcindezi futhi ihlehlise isixhumi, esidala ukuxhumana okuqinile nokuvikelekile.