Roller Bit-Standard（YX-1）
It has the most favorable price rate, but combined the latest 3rd generation leg and 2nd generation cone. It is idea piling bit for limited budget project. It has a sound performance for the core barrel less than 1500 mm.
Specification:
1.Size:8-1/2″
1.Insert Shape: Chisel, Conical, Ballistic, Spheral
1.IADC: 517,537, 617, 637
1.Formation: 100-300 Mpa, Granite and other hard rock formation
Right inserts for right rock
Covers all types of rock from your specially project
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