Qhov txoj kab uas hla ntawm cov khoom siv saw yog cuam tshuam nrog cov khoom siv saw siv thiab qhov tuab ntawm cov haujlwm sawing. Qhov txoj kab uas hla ntawm cov saw hniav yog me me, thiab qhov txiav ceev yog qhov tsawg; txoj kab uas hla loj ntawm cov hniav saw muaj qhov siab dua rau cov khoom siv saw thiab cov khoom siv saw, thiab cov khoom siv sawing kuj tseem siab. Txoj kab sab nraud ntawm lub saw hniav yog xaiv raws li qhov sib txawv pom tshuab qauv siv los siv cov hniav sib dhos nrog tib lub taub.
Cov qauv ntawm cov qauv txheem yog: 110MM (4 nti), 150MM (6 nti), 180MM (7 nti), 200MM (8 ntiv tes), 230MM (9 nti), 250MM (10 nti), 300MM (12 nti), 350MM (14 nti), 400MM (16 nti), 450MM (18 nti), 500MM (20 nti), thiab lwm yam, hauv qab kab sib tsoo pom cov nplais ntawm precision vaj huam sib luag saws feem ntau tsim los ua 120MM.
