... Concrete Road We can supply all kinds of road planing bits,sleeves,and holders which have hign strength, ... is like RL08, RL09, RL07 etc.. 2. Road Planing bits Road milling bits are for cutting asphalt road ... and concrete road. Road planing bits for road milling machine, they are used ... W6 / 22 etc. Actually we can make road planing bits with all kind of model using for road ...