42" Overall Length, Drills to a Depth of 36". Developed by farmers for farmers and recommended for the fast and convenient extraction of core samples for testing purposes. Probes methodically collect samples without mess or touching of the sampled materials. The inside diameter of the shaft smaller than the cutting tip so samples stay loose for easy bagging with the cleanout rod between samplings. Cleanout rod pushes up to 20 core samples into a 1-gallon zip-lock bag that is suspended from the ABS protective shield. The heat-treated, hardened steel, serrated tip provides aggressive cutting action. A protective cap is included. Shaft and connections are made of stainless steel. A cordless drill is recommended. One-year warranty.