Segmented Cutting Blades Item No. Diameter Segment's Thickness (mm) Arbor (mm) Max. Speed RPM inch mm 155-304 12" 305 3.2 25.4 / 50 / 60 5,100 155-354 14" 355 3.2 25.4 / 50 / 60 4,400 155-404 16" 405 3.4 25.4 / 50 / 60 3,800