FELLOWS Gear Shaping Machine Model 36-6, S/N 27364 with 13" Riser assembly This fellows gear shaper is equipped with a 13" Riser. You are able to cut both internal or external Spur gear. with Present guide. MACHINE SPECIFICATIONS: * Maximum Pitch Diameter External.......................................40" * Maximum Pitch Diameter Internal.......................................36" * Maximum Workpiece & Fixture Diameter..................................40" * Maximum Face Width.....................................................6" * Stroke Length..........................................................6" * Maximum Helix Angle...............................................45 deg * Maximum Diametral Pitch -For Spur Gears.......................................................3 DP -For Helical........................................................4/5 DP * Work Spindle Bore Diameter.........................................5.875" * Twelve (12) Stroking Speeds, w/ranges.........................18-300 spm * Machine Dimensions.....................................92" x 60" x 120"H * Machine Weight, Approx........................................20,000 Lbs Machine Is Equipped With: 13" Riser Assembly  4" spindle diameter Misc. Change Gears 1 Cutter Adapter Machine Guarding Machine can be inspected under power with proper notice. Additional adaptors can be purchased. Send us your part prints to confirm what you require on this machine. visit www.PiselliEnt.com and request formal quote and pricing