rock drills for sale

     Rock drills for sale    The advantage of using a tricone bit   1. There is a tri cone suitable for any formation 2. Tricone bits are versatile and can handle changing formations 3. Tricones are reasonably priced with long life and good rate of drilling    Depending on ur application,we can provide u with new,rerun or premium oil field quality tricone bits,  the difference between a premium oil field tricone bit and nonpremium oil well quality tricone is that the roller cones have high end sealed bearings: extremely high quality tungsten carbide and offer diamond gauge protection throughout the drill bit. These roller cone bits are designed to go to extreme depths in extreme conditions and in situations where they cannot fail.   Our tci tricone bit range in size from 3” to 26”   Our mill tooth tricone bit range in size from 3” to 26”     The main structure parameter of tricone bits  

Bit sizes		Std API pin shank(inches)	Jet nozzle size (mm)
mm	Inches		Diamter	Length	Nozzle diameter
95.2-107.9	3 3/4-4 1/4	2 3/8REG	20.3	17.5	4-10
120.6	4 3/4	2 7/8REG
142.9-171.4	5 5/8-6 3/4	3 1/2REG	23.6	19	5-16
190.5-200.0	7 1/2-7 7/8	4 1/2REG	29.8	19	7-18
212.7-222.2	8 3/8-8 3/4	4 1/2REG	33	27	8-20
241.3-311.1	9 1/2-12 1/4	6 5/8REG
444.5-660.4	17 1/2-26	7 5/8REG	33(41)	27	8-20

  Suitable formations:  

Rock formation		Bit type	Bit size		Drilling weight	Rotary speed
			mm	inch	N/mm	r/mm
Very soft	Soft marl, clays, sands, salts etc.	1	187.3-346.1	7 3/8-13 5/8	441-735	120-50
			444.5-660.4	17 1/2-26	196-686	90-60
Soft	Clays, soft shale, marl, sands, salts etc.	2	95.2-174.6	3 3/4-6 7/8	245-490	100-50
			187.3-346.1	7 3/8 13 5/8	490-784	90-40
			444.5-660.4	17 1/2-26	196-686	60-40
Medium soft	Shale, marl sandstone, soft limestone etc.	3	95.2-174.6	3 3/4-6 7/8	245-490	90-50
			187.3-311.1	7 3/8-12 1/4	490-784	80-40
			444.5-660.4	17 1/2-26	196-686	60-40
medium	Hard shale , limestone, medium/hard sandstone etc	4	95.2-174.6	3 3/4-6 7/8	294-539	80-60
			187.3-241.1	7 3/8-9 1/2	539-833	60-40

   Details in Pics:       Certification:     Packing   Package:   1.All the Tricone rock bit are usually packed by wooden case, which is strong and safe. We assure that the products will arrive in good conditions.            2.All the PDC bit are usually packey by iron case,Which more stronger and safer, we assure that products will arrive in good conditions.     Shipping by sea:
We can handle shipment as well. Please let me know the possible order quantity and your destination sea port. I can check freight and let you know the relevant cost        Our aim is to supply the best quality products and the fastest and best service to meet every client's satisfaction. Contact me when there is any inquiry or question.   Let's work together to bring your dream to reality.   Step:   1. firstly contact us, let me know u have the need about the bit. 2. Decide the size and IADC code in accordance with client's requirement and our recommendation 3. We will give the best offer. 4. Client's accept the offer and we send proforma invoice.
5. Client transfers 30% deposit and production begins. 
6. After production, we will send ready products photo. 7. After client's confirmation, we will arrange shipment, and send copy shipping documents like B/L, commercial invoice and packing list. 8. Client transfer balance payment and we will send original documents by express or Telex Release.