Senco FramePro 600 / 650 Series O-Ring / Rebuild Kit - Aftermarket Replacement Reliability Provin KT-SE-650E Aftermarket Replacement Part for the Senco FramePro 600 and FramePro 650 O-Ring Kit This kit will fit the following nailers: Senco FramePro 600 Senco FramePro 650 Includes: All the o-rings in the tool. Instructions with a schematic of the tool. O-Rings are color coded to aid installation. Manufacturer: Reliability Provin Part Number: KT-SE-650E This is a brand new tool part and comes with manufacturers warranty.