The CN445R2 is the latest version of the MAX SuperRoofer. MAX manufactured the first roofing nailer sold in the US market and we continue to improve on our original design. The CN445R2 is lightweight yet very powerful. The CN445R features dial adjustable depth control, full round driver blade, rapid fire trigger, inline filter, trigger lock out, magnet in the nose, shingle guide, shoots 3/4-Inch to 1-3/4-Inch roofing nails and patent pending self cleaning nose. Shoots 3/4-Inch to 1 3/4-Inch roofing nails.