... Drill Steel)Including:Drill rods with Shank H22x108mm,(6,7,11,12 degree taper) taper rods in most lengths.button bits, cross type bits and chisel bits ... DHD340a,DHD360,DHD380,and low pressure hammers CIR65a, CIR90, CIR110, CIR150,CIR170etc,DTH drill bits:60mm-254mm bits with flat face, ... ,38mm,etc.8. Blast furnace tap hole drill tools.(Rod, Cross type bits, button bits and X type bits etc) Drill bits