12 1/4" Goldman rock bit rotary tricone drill

12 1/4" Goldman rock bit rotary tricone drill steel geological exploration equipment oil well drilling bits 1.The right drill bit for the right job gives tip the advantages of: Reducing the number of times you trip Increased rate of penetration when drilling means more holes faster Straighter holes and Longer bit life Saves you time and money Bits Thread Connections and sizes: Bit size 3 5/8" – 4 7/8” | Thread 2 3/8 API Bit size 5" – 5 5/8" | Thread 2 7/8 API Bit size 5 3/4" – 6 3/4" | Thread 3 1/2 API Bit size 7 7/8" – 8 3/4" | Thread 4 1/2 API Bit size 9 1/2" – 12 1/4" | Thread 6 5/8 API Bit size 9 1/2" – 12 1/4" | Thread 6 5/8 API Bit size 12 1/4" – 15" | Thread 7 7/8 API The tricone bit is the most versatile drill bit on the market. It is the go to drill bit in most styles of drilling. Whether you are drilling a water well or an oil well,Western drilling tools has the Tri Cone drill bit for you. The Advantages of using a tricone over other drill bits: There is a tri cone suitable for any rock formation. Tri cone bits are versatile and can handle changing formations. Tri cones Are reasonably priced with long life and good rate of drilling. Depending on your application we can provide you with new,re-run or premium oil field quality tricone bits. 2.Classification of tricone bit: 1. Bearing type: rolling bearing and sliding bearing 2. Seal type: rubber seal and metal seal 3. According to the fixed way of tooth: insert (hard alloy teeth) three-cone bit and milling teeth (steel tooth) three-cone bit. The tricone bit is one of the most widely used drilling bits, which has the characteristics of wide adjustment and high speed. The tricone bit consists of two dozen parts, including cutting structure, bearing structure, locking device, oil storage sealing device and nozzle device. The cone bit has the effect of shock, crushing and shear crushing formation rock during rotation, so the cone bit can adapt to soft, medium and hard layers. Especially, the drilling speed of the cone bit is greatly improved after the emergence of the jet cone bit and the long nozzle cone bit, which is a major revolution in the development of the roller bit.