FUGEN 2 STROKE PETROL HEAVY DUTY PICKET DRIVER Engine Type: Single cylinder, air cooling, 2 strokeDisplacement: 32.7CCMax Power & Speed: 900W (1.2HP) 6,500RPMImpact Energy: 30-45JComes with 2 Picket/Post guides: 55mm diameter x 160mm deep & 69mm diameter x 160mm deep