Imashini ya Jarvis yo mu bwoko bwa JHSL ni imashini itaremereye ifatwa mu ntoki, ikanakoresha imbaraga z'umwuka mu gukuraho uruhu n'ibinure ku ngurube/akabenzi
- Ishobora kandi gukoreshwa mu gutunganya inka, inkonk, n'ifi.
- Yakorewe by'umwihariko gukuraho ibice bitandukanye by'ingurube
- Ishobora no gukoreshwa mu gutunganya amaguru y'ingurube, gukurahoo ibinure, gukuraho uruhu ku ifi, gukuraho agatuza k'inkoko, no gukuraho amababa y'imbata.
- Ikata inyama zifite uburebure butatu butandukanye - 1.6 mm, 3.2mm, na 6.4 mm (1/16", 1/8", na 1/4")
- Ni uburyo buhendutse bwo gukuraho ruruhu n'ibinure ku buryo bungana ku kigero cyifuzwa.
- Ikurho uruhu neza, ku buryo bungana, nta cyuma gikase mu nyama
- Ntabwo iremereye, kuyikoresha biroroshye, kuyitaho no kuyisukura nabyo biroroshye.
- Aho bafata hashora guhindurwa mu mpande zose kugirango uyikoresha yisanzure.
