Use for general rough framing and construction. FITS: Airy AVA 2100 CRK, Atro RHS921, Bea R100-950, Bea R90-946, Besco RHF 9021, Bostitch N79RHN, Bostitch N88RHN, Bostitch N90RHN, Bostitch N95-162RHN, Bostitch N95RHN, Campbell NS2090, Craftsman 18436, Craftsman 19034, Depoan N-2290, DeWalt D51844, DeWalt D51845, Duo-Fast CN137, Duo-Fast CN325B, Duo-Fast CN350, EZ SN 9021, Fasco F6C-RHN-20-100, Fasco R5C-RHN-20-90SS-CT, Grex SF 9021 H, Griprite GRPRH 350, Hilti RHN 90-20, Hitachi NR83A, Hitachi NR83A2, Hitachi NR83AS, Hitachi NR90AC, Hitachi NR90AC2, Hitachi NR90AD, Interchange ICB-FN88, Jamerco JTNFH90A, JK 89, Makita AN8300, Makita AN922, Max CN890RH, Max SN80, Max SN90, Paslode 5325 SRH, Paslode 5350 SRN-20, Porter Cable FR350, Prebena 9FAK100, PrimeAir RH350, Senco Frame Pro Series, Senco SN60, Senco SN65, Senco SN65C, Spotnails YPR 90, Trusty AF9021, Trusty TY12190 FN, Unicatch UNS350P.