The Power Nail 200 pneumatic cleat nailer drives 20 gauge L shaped cleat nails from 1" to 1-1/2" in length. Includes one year manufacturers warranty. Comes complete with non-marring mallet, 4 adapter pads, 4 shims, allen wrenches, blade retainer, and plunger spring. Power Nail's  specialty line of 20 gauge cleat nailers are excellent for installing 5/16" to 9/16" engineered flooring. Thinner 20 gauge fasteners significantly reduce the risk of tongue splitting.