100 Series Rotary Cutter Driveline Assembly. Driveline minimum C-to-C is 44" (1120 mm), maximum C-to-C length is 67" (1710 mm), total collapsed length is 52" (1320 mm). Tractor end: 1-3/8" 6 Spline, Implement end: 1-3/8" round bar with 1/2" pin hole. Rated as a category 4 HD (64 hp), size 6. Fits Maletti Rotary Tiller.