Picks is installed in milling drum of milling machine and cut the road surface. The bits have two type , asphalt bits and concrete bits . According to the different road hardness with different cutting tools , so it saves cost. Applicable machines: wirtgen: dynapac;bomag ;xcmg;sany Material: tungsten steel Specifications: w6hr;w13 ;w5;w7, etc Installation position: cold planer, mining machine