Seedburo's Hay Sampling Kits are made of heavy stainless steel that quickly and easily extract samples from hay bales. The HSK-90 Open Tube Kit allows the sample to be removed from the side of the tube so there is nothing to take apart. The HSK-91 Closed Tube Kit encases the sample completely. A dowel rod is used to extract the sample from the tube. Extension rods are available for deep core sampling. The tube features a screw-on serrated tip that cuts through hay bale with help from hand brace. An adapter is also available for ½" power drill. Ship wt (kits) 10 lbs.