According to Senco, these newer models have 14 to 20 percent more power than Senco round-head nailers currently on the market. The 600/650 FRH and the 700XL/750XL have an adjustable exhaust, depth of drive control and an E-Z Clear feature
Senco improves Frame Pro nailer line
Senco recently expanded its Frame Pro line of nailers to include the FramePro 600/650 FRH and the 700XL/750Xl models. These full round-head tools use the same design found on Frame Pro clipped-head nailers.