router CLYK-25IV Groove machine product description Groove machine can easily exactly quickly cutting on asphalt pavement and cement along any crack Width 1-5cm, depth 0-3 cm performance advantage 1Engine 25HPdouble tank cold wind 2 Three steps of air filtrate device 3Whole weight 255kg 4Cutting depth import 6units metal cutter 530mm the biggest depth 30mm 6cutter longevity ne sets of cutter can cutting 1500 delay pavement. 7 Safety defend High performance 12V battary 25L Oil tank 8Operation handle Height can adjust as hight and favorable 9Turn 10Safety Trig 11Emergency safety of stop system 12Control device and scale 13Tool and lable 13Reduce 14Dust absorption of device 15Watering device