Structure Features:

1. This series of drill bits are divided into two types: inserted tooth (517/537/437) and steel tooth (111 / 114 / 121 / 124 / 127) .

2.The steel tooth bit is a tri-cone bit for rolling bearing oil. The tooth surfaces are welded with tungsten carbide wear-resistant material. The bearing system can adapt to higher rotation speeds and adapt to the ground.Layer drilling, high mechanical speed, long life, reliable work.