Isethi yamaphinikhodi ayisithupha we-carbon steel parallel 150mm ishaya ukushisa okuphathwe ku-HRC52 +/-2 ngesiphetho sesiteleka sibe ngu-HRC40 +/-5 futhi aqukethe: 3, 4, 5, 6, 7 kanye no-8mm amaphini ahambisanayo. Ihlinzekwe ngesibambi sesitoreji esiwusizo.