AgraTronix 07190 Hay Probe Core Sampler. Used to gather samples from Straw, Hay, or Silage bales in an easy and convenient way. Ensures fast and contamination-free sampling. Features include a zip-lock bag that attaches to the protective metal shield allowing collection of up to 20 samples with no mess or contamination, the inside diameter of the shaft is 7/8˝ allowing samples to stay loose for easy bagging with the cleanout rod between samplings, a cleanout rod for pushing hay into provided zip-lock sample bag, shaft and connections are made of stainless steel, and it has a replaceable core sampler tip. Sampler can be used with either a 3/8˝ or 1/2˝ drill. Sampling depth is 20˝.