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 black steel drill bit set usually contains High-Speed Steel (HSS) bits with a black oxide finish, offering durability and corrosion resistance for drilling wood, plastic, and softer metals, often featuring a 135° split point for self-centering and efficiency, coming in various sizes within a case for general-purpose use.