The coil siding nailer offers the precision, power and features pros demands for applying siding, sheathing, decking and fencing. The first nail gun, using air pressure to propel a nail, was first introduced in the 1950s to increase the speed of sheathing and sub-floors for house construction. These days, siding nailers are common tools of professional construction professionals. The Metabo HPT Siding Nailer is capable of driving nails as large as 2-1/2 x 0.099 in at a rate of 3 per second, the NV65AH2 is both powerful and efficient. With added features like a selective actuation switch, side-load tilt bottom magazine and repositioned depth of drive adjustment dial, this professional Siding Nailer gets even better. Additional features such as the adjustable air deflector, no-mar nose cap and plastic shield add convenience and the ability to use both wire or plastic sheet nails creates flexibility.