Diamond core bit for hard concrete with steel bar

Diamond core bit for hard concrete with steel bar Can provide excellent drilling performance on hard reinforced concrete with steel bar. Precise processing, perfect surface treatment, very good segment can provide a better drilling. All the segment are made from exported German made diamond powder, sintered by Italy Arga sintering machine, we could provide a better working solution according to different working condition. Can drill on brick, soft concrete, reinforced concrete with aggregate containsgranite, marble, limestone, sandstone, quartz, etc.