SUNNEN MBB-1690 H is a honing machine of high precision, engineered for superior accuracy and reliability. Capacities: min diameter 2 mm, max 140 mm; max honing length 406 mm. Key specifications: spindle with 12 steps, 200–2500 t/min; spindle motor 0.37 kW; voltage 3x 380 V 50 Hz; machine weight about 400 kg. Delivers tight tolerances and is suited for automotive, watchmaking, machine tools, aerospace and medical applications.