Fellows 7 type gear shaper Model 72 machine specs: * Max. Pitch Diameter Spur External.....................7" * Max. Pitch Diameter Helical External..................7" * Diametral Pitch, Spur Gears...........................5/7DP * Diametral Pitch, Helical Gears........................6DP * Face Width Max........................................1.5" * Helix Angle Degree, Max ..............................45 Degrees * Cutter Strokes Per Minute, Range.....................200-450 SPM * Machine Dimensions...................................3'9" x 3'5" x 6'6" H * Machine Weight.......................................3,300 lbs.