Quick Details

• Place of Origin: Hubei, China (Mainland)
• Brand Name: chuanda
• Model Number: 12 1/2 311mm, IADC517
• Type: Center Drill Bit
• Material: Cobalt Steel Alloys, Tungsten Carbide
• Use: Masonry Drilling, Well Drilling
• Processing Type: Forging
• Formation: Half abrasiveness
• Bearing Type: Journal Bearing
• Sealing Type: Rubber sealing
• WOB (kN/ mm) : 0.50~0.90
• RPM (r/ min) : 100~45

Packaging & Delivery

Packaging Details:	Wooden cases or as your requirement
Delivery Detail:	Within 7-10 days after the payment received

Specifications

API IADC517 TCI tricone bit
1. Low compressive strength
2. Medium hard and abrasive formation
3. Gauge protection

Packaging & Delivery

Packaging Detail:	Wooden cases or as your requirement
Delivery Detail:	Within 7-10 days after the payment received

Features and applications

1. Precise TCI tricone Rock bit

2.Full length/ surface teeth hard facing

3.Optimized profile and higher rate of penetration

4.Better steel in use and longer stable drilling hours

5.Good wear-resistance

6.Higher stabiltiy

Our advantage

1. Good quality, reasonable price.
2. ISO9001: 2000, , API certified.
3. Timely delivery.

No	Sizes Available
	Inch (in)	Metric (mm)
1	7 7/8	200.0
2	8 1/2	215.9
3	9 1/2	241.3
4	12 1/4	311.1
5	17 1/2	444.5

No	IADC Code	Recommendation
		WOB (KN/ mm)	Rotary Speed (rpm)
1	117	0.35~0.8	240~80
2	127	0.35~0.9	240~70
3	437 447	0.35~0.9	240~70
4	517 527	0.35~1.0	220~60
5	537 547	0.45~1.0	220~50
6	617 627	0.45~1.1	200~50
7	637	0.5~1.1	180~40