The Powernailer Model 200 mallet-activated tongue-and-groove flooring nailer has been designed to handle the specific needs of installing tongue-and-groove engineered flooring. This nailer can handle 5/16" to 9/16" tongue-and-groove engineered flooring using easy-to-change adapter plates and shims. This model uses Powernail's new E-powercleats, available in 1", 1-1/4", and 1-1/2" sizes. E-powercleats have been designed to hold engineered flooring securely while reducing the risk of damaging the flooring's delicate tongue.