Yanggu Yihui Drilling Tools Co.,Ltd.
ADDRESS:No.216 Zhengyang Road, Qingdao, Shandong,China.
Hollow bit is also known as coring bit, opener, center bit, steel plate bit, magnetic bit, rail bit, etc.
The main materials of drill bits are high speed steel, powder metallurgy and cemented carbide.
Hollow bits have complete types and specifications, which are suitable for imported magnetic base drills (magnetic drills) of various brands and general drilling machines, milling machines, boring machines, etc. The product is matched with imported magnetic drill, and the drilling efficiency is 8~10 times that of the ordinary drill.