Selecting the right hammer for your DTH drilling is largely determined by the hole size and the type of rock formation. Ausrock is proudly offering a full range of blast hole drilling hammers for your selection. Welcome to Ausrock’s three series of hammer models. Our AR Short Shank, standard valved and valveless hammers are designed and built with their own features and suits for a variety of drilling applications and conditions. Our AR Short Shank valveless hammers are gaining more popularity and favour from our users because they are faster, lighter and more service friendly with longer drilling life.