115mm DHD340 DTH hammer drill bit 115mm DHD340 DTH hammer drill bithave powerful drilling capacity,Website:http://www.pulanka.com, great reliabiltiy and low operating cost. Advanced prodction techologies and skillful design, as well as high quality materials result in good performance, long service life, simplicity and endurance. Thus, our drilling tools are widely used for drilling and qurrying in mining industries and other construction fields.Product Description： Name115mm DHD340 DTH hammer drill bitMaterialSteel