Dumbbell siffar cutter ne samfurin kayan aiki don gwaji kafin roba, filastik, fina-finai, hadaddun kayan aiki, ruwa mara amfani da ruwa, non-saƙa da sauransu kayan aiki; Tsarin ƙayyadaddun samfurinsa yana da yawa, ya shafi ƙa'idodin ƙasa da yawa, alamun layi, yau da kullun dumbbell cutter na yau da kullun, akwai buƙatun musamman ko dumbbell cutter da aka tsara a cikin ASTM, ISO.

Amfani da dumbbell siffar cutter bukatun:
Ga shirya samfurin tare da cutter nau'i da girman ka'idoji akwai bayyane ƙa'idodi, da cutter gefen ciki surface bukatar tsaye, daidai tsakanin biyu gefen. Kafin kowane gwaji, ya kamata a bincika ko girman cutter, daidaito, kusurwa, da dai sauransu sun cika ƙa'idodin ƙa'idodin. Ya kamata a kula da kulawa da bincike a yau da kullun, ya kamata a kula da ko ƙwaƙwalwar ƙwaƙwalwar ta zama daidai, ƙwaƙwalwar ƙwaƙwalwar ta zama mai ƙarfi, ƙwaƙwalwar ƙwaƙwalwar ta zama mai ƙarfi, ƙwaƙwalwar ƙwaƙwalwar ta zama mai ƙarfi Kowane yanayi zai haifar da yanke samfurin da lahani, kamar fadin samfurin, daidaito na gefen samfurin, siffar samfurin sashe, da dai sauransu, zai haifar da karkatarwar bayanan ganowa. Matboard da aka yi amfani da shi a lokacin yankan dumbbell-siffar samfurin ya kamata ya zama mai laushi da wuya dacewa rufi tape ko kyau katin, gwaje-gwaje amfani da tabbatar da samfurin a lokaci daya yankan gyara. Matboard ma m zai karkatar da samfurin, haifar da babban bambanci a sashe na dumbbell irin samfurin da rectangle; Matboard ma wuya zai lalata dumbbell-shaped wuka gefen, haifar da karkatarwa a samfurin size.