Sports floor contractors have observed a substantial gain in time … for less job fatigue. Primatech leads the way for large surface flooring. The advanced high precision 550 Nailer features the two-way sideshift PrimSurfer roller base, 240 L type nail capacity magazine, the long lasting Primpact striking module and an extension rotating handle for more comfort.  More Speed, Precision. Comfort and Reach generate more Benefits.