No 7 industrial ware & building materials opp hostel k Abuja by pass mile 3 port Harcourt city
UST AROUND MILE 3 PORT HARCOURT CITY
A 3-layer core diamond drill bit (often referring to multi-layer nickel-plated bits or 3-step tapered diamond reamer bits) is primarily used for fast, clean hole drilling, hole expansion, and chamfering in hard, brittle materials without cracking them.