The Max 14.4V Lithium-Ion Cordless TwinTier 19 Gauge Rebar Tying Tool (RB441T) is the fastest solution on the market for tying #3 x #3 to #7 on #7 rebar combinations. TwinTier technology allows the RB441T to tie 4,000 ties per charge, while delivering just the right amount of wire for greater productivity and cost savings. An enclosed magazine protects tie wire and internal mechanisms from debris, providing greater durability.  Compared to hand tying, this tool can reduce the risk of musculoskeletal injuries.