This Max Li-Ion cordless rebar tying tool, item #RB217, uses .8mm wire ties for wire mesh x wire mesh and #3 x #3 rebar. Includes one year manufacturers warranty. The RB217 offers a lightweight and compact design that ties 5X faster than manual tying. Ties are completed in less than 1 second with consistent strength. Features include a lithium ion battery that gets 2,000 ties per charge, brushless twisting motor to maximize durability, extremely ergonomic design to prevent wrist injury, and auto shutoff. The Max RB217 works well for commercial buildings,road and bridge construction, foundations, precast plants, bridges, radiant heating tubes, and electrical conduits.