Adaptation stratum: suitable for medium and slightly weathered hard rock of 70~100 MPa, with large fissures in the cave geology, such as metamorphic rocks, limestone, granite, basalt.

AULONE can produce bullet teeth, including B47K22, B47K19, B47K17, 3050-19, 3050-22, WS39, WB39,C31HD, C21HDU, 82, U84, etc., are used in various rotary drilling rigs for pile machinery. Drill bits, and BFZ80, BFZ80T etc.various holders, B43H, B85/2, BFZ70, BFZ75, BFZ72, BFZ65, BFZ80, etc. with good quality, high strength, strong wear resistance and long service life. The bullet teeth steel body is made of heat-treated ,high-strength alloy steel, adopting advanced brazing process to maintain high strength and toughness and high wear resistance; the rotary cutter head is made of high quality hot isostatic pressing cemented carbide. the bullet teeth produced by AULONE can be matched with various rotary drilling rigs such as Bauer, Carter, Sany, Yutong, Foton Lovol and Zoomlion. According to customer requirements, we can also produce all kinds of special-shaped rotary teeth, grooved teeth, partition wall teeth, large-diameter sleeve teeth and various plate teeth.