Description : 1. Blade size: 27 x 0.9 x 3430. 2. Blade speed: (1) (m/min): 25. 40. 51. 71. (2) (fpm): 82. 132. 170. 235. 3. Motor power: 2. 4. Shipping volume: (1) (mm): 1930 x 760 x 1130. (2) (inch): 6.4(L) x 2.5(w) x 3.7(H).