... used in earthwork projects, minerals exploiting, well-digging projects and foundation constructions etc.Our company produces ... the high quality and reliability of the products.Tapered Drill BitType --Chisel Bits / Cross Bits / Button ... R25,R28,R32,R38,T38,T45,T51Down-The-Hole Tools1) DTH BIT---65MM to 254mm.2) ... Suitable for had rock ( more than 2067bar)Drill RodSteel Drill Rod---H19/H22, Length: 0.5M to ...