Wilson Floor Polisher Specification: Size: 8″(203) – 1/5 HP, 205 Rpm, 15 Kgs. 10″(254) – 1/4 HP, 190 Rpm, 18 Kgs. 13″(330) – 1/3 HP, 190 Rpm, 21 Kgs. 16″(406) – 3/4 HP, 175 Rpm, 30 Kgs. Voltage 220V 60 cycles Aluminum Deck Gear release handle