... Cutter Shank Diameter of dia16mm Model Number:YOM-3/-4 Multiple Spindle Oscillation Mortiser YOM-3/-4, with Cutter Shank Diameter of dia16mmModel ... Oscillation Speed (2 speeds) 95/190 strokes 95/190 strokes Spindle Speeds: 6,000 to 12,000rpm, 6,000 to 12 ... ,000rpm Tilted Mortise Angle: 20, 20 Spindle Motor: 1.8hp, 1.8hp Oscillation Drive Motor: 1hp, 1hp ...