... steels(Integral Drill Rods)Shank H22x108mm, H19x108mm,standard hex, Bit diameters include 20-42mm.2.Tapered drilling tools(Tapered Drill ... ):Spherical, ballistic and Conical.(Threaded R32, T38, T45,T51, bit diametre:45mm-127mm);Couplings sleeves-manufactured with a middle stop ... planing bit for road milling machine and trenching machine. Shank dia:19.4mm,25mm,30mm,33mm,38mm,etc.8.Blast furnace tap hole ...