The 445 Flex Power Roller is recommended for use
on 3/4" to 5/8" Tongue and Groove flooring.

Using the Power Roller speeds up the installation and requires less effort on the part of the installer.  Using the adjustable foot, you can fine-tune the nailer height according to different wood profiles. 
No need for extra shims and pads!

The 445 Flex Power Roller uses 16 gage Powercleats which come
in lengths of 2", 1-3/4", and 1-1/2".