... Rebar Tying Machine, Rebar Tying Tool, Rebar Tier, Rebar, Hand tool, Hand-hold tool, tying tool, knoting tool,tier, hardware tool, wire, rebar tier wire, ... putting the machine jaw on the crossed rebars and then pulling the trigger only.It greatly saves the labor cost ... there is a risk reduction. Biomechanical research shows that high compression forces occur in the spine while stooping, and that ...