Knife blade for lawn mower ELECTRIC MOWER COMPATIBLE TO MODELS: AL-KO - ALKO SIGMA ORION 300 E GARDEN TEC 3000E AL-KO - ALKO Length: 290 mm Centre hole diameter: 16 mm Side hole diameter: 10,5 mm Side hole spacing: 52 mm CODE: 30-998 ORIGINAL CODE: 531012 SM