Steel tooth tricone bits for soft to medium formation drilling reliable bearing system all surface and teeth are hard enhaced 114-117, 127 soft formation tooth bits the 114-117 bits are used to drill low-compressive strength, soft formation. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear. On the softest bits type this hard facing completely covers the bit teeth. 127 medium-hard formation milled tooth bits the 127 bits are used to drill high-compressive strength, medium hard formations. Short projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied. Hejian Solidkey Petroleum Machinery Co., Ltd has began its foreign trade from 2006, and now to further expand our market we jion the Made-in-China. Our products has got ISO9001: 2008 product certification. They have got the good evaluations from our stable customer
