Item:Drill core bits
Adapter: 1 1/4UNC
Application: Drilling green concrete with lots of steel inside
Performance: If drilling concrete with steel ,it can make a hole within 16minutes;if drilling concrete without steel, it can make a hole within 10minutes. It can drill 30holes.
Name: HeBei Pro Diamond Tools Co., Ltd.
Add：No.2,Jian Ye Road, Zheng Ding County,Shijiazhuang city, Hebei, China