For Model #s 67BSD,87DLX,67GSA,69DLX,701ECF,601PF--- FMC OR Barett 400,500,700 Hoffmann/RJ West True Cut 400/401 Hoffmann/RJ West part# 722-83-4--- Perfect Equipment Model # 400 & 450 Twin Turn -Part # W139 ---3 cut edges---positive rake with .020 radius. Left & Right hand tool holders 6 bits per pack. California Residents WARNING