The Model 45R is ratcheting version of the Model 45 nailer which is easier use and requires less effort to drive the nail. Using a ratcheting, multi-blow nailer allows the user to strike multiple times while driving the nail at the perfect 45 degree angle and countersinking the nail as well. The model 45R is recommended for use on 5/8", 3/4" and 33/32" Tongue and Groove flooring. Nailer package includes a choice of a Black or White 5mi Mallet, an extra driving blade, plunger spring, feeder spring, blade retainer and 8/25 adapter plate for installing 3/4" & 22mm Tongue and Groove Flooring. Options: Adapter plate 826-12 for 1/2" Tongue and Groove flooring, or adapter plate 826-58 for 5/8" Tongue and Groove flooring.