The Metabo HPT 21-Degree 3-1/2" Plastic Collated 18V Cordless Framing Nailer Kit (NR1890DRSM) completely raises the bar for cordless framing nailers. It's equipped with Metabo HPT's unique Air Spring Drive System that delivers similar performance as a pneumatic nailer, but offers total cordless freedom. This Cordless Framing Nailer uses sealed compressed air to drive each nail, which results in zero ramp up time, up to 2 nails driven per second, recoil that feels like a pneumatic framing nailer and best of all, there is no refilling of the air tank required. Ideal for all construction framing applications but is particularly useful for punch-out work on a jobsite for quick in-and-out operation with minimal hassle and professional results.