... 34, 38, 40, 43, 50mm Connect: hex19, hx22, hex25 taper rod Tips: spherical, parabolic button Specialisted in producing of varies type ... , 42mm, 44mm and so on. With different degree taper) Tapered Rod (Rod 19mm, 22mm, 25mm; Shank hex, 19mm, 22mm) Internal Drill ... run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Button bits for Rock drilling 34mm/ 38mm/ 40mm/ 43mm etc