description max usa rebar twin tier bare tool the rb441t twintier is a 6th generation max re-bar-tier. equipped with 3 new innovative mechanisms, a dual-wire feeding mechanism, wire pull-back mechanism, and wire bending mechanism, the twin tier is the most efficient rebar tying tool on the market. the twintier can tie 4000 ties per battery charge. battery and charger sold separately. california proposition 65 warning. features bare tool. the battery and charger are sold separately. double the speed. the dual wire feeding mechanism increases productivity. cost savings. the wire pull back mechanism dispenses the precise amount of wire needed to form a tie, reducing wire usage. shorter tie height. the twintier's wire bending mechanism (patent pending), produces a shorter tie height. less concrete is needed to fully cover a wire tie. specifications acme tools brand name max usa acme tools part number rb441t w/o bc assembled weight (lbs) 4.5 california proposition 65 warning required yes color / finish red, black country of origin japan cushioned grips / ergonomics yes globaltradeitemnumber (gtin) 00093818305481 handle length (in) 3.5 internet product code (ipc) ad286b572e3 manufacturer warranty 1 year limited material metal, plastic package weight 11.25 package weight (lbs) 11.25 tool material metal, plastic tool type rebar tying upc 093818305481