60 mm, 101.6 mm from asphalt concrete and 152.4 mm in diameter and at least 300 It can take mm long core. Each Able to extract core samples in the direction is at capacity. At least 6 HP power, Gasoline engine capable of turning 600 rpm in motor and off-road conditions can work. During core extraction the required water at the required flow rate. When operated at any angle, this water leaking into the engine and causing malfunctions.It has a mechanism that prevents water It has storage. Being low and high in two periods as It can work. It has a trailer. (pullable) One solid and made of steel 60 mm, 101.6 mm and