Mubato wakaita L-wakaita kuti wrench ive nyore kubata nekushanda, ichipa kutapurirana kukuru kwesimba. Kungave kuomesa kana kusunungura screws, L-yakaita bhora wrenches inogona nyore kurarama neakasiyana siyana ebasa.
Iyo bhora muromo inopera inogona kutenderedzwa pamakona akawanda, ichikupa iwe kuchinjika kwakawanda kugadzirisa nzvimbo ye wrench kuti igare makona akasiyana uye zvakaoma-kusvika-kusvika-screw. Iyi dhizaini inogona kuvandudza kushanda zvakanaka uye kuderedza kushanda kwakaoma.