Kingdream Steel Tooth Drill Bits

Name: Kingdream Steel Tooth Drill Bits
Brand: Hejian Perfect Drilling Equipment Co., Ltd.
Rating: 4.6 (19 reviews)

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10yrs

Cangzhou, Hebei, China

Manufacturer
OEM service

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Hejian Perfect Drilling Equipment Co., Ltd.

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Product description

Advantages of our products

(1) strong resistance to abrasion and impact resistance.

(2)Cutter's quality performance is good.

(3)Long work life.

(4)Stocks adequate, time delivery.

(5)Rich experience in drill bit.

Commodity	Kingdream 81/2" tungsten carbide tricone rock drill bit
Brand	Kingdream/CS/Lilin
IADC Code	Covering all codes
Certification	API &ISO
Size Scale	From 3 3/4" to 26"
Application	water well,oil field, construction,geothermal, directionalboring,and underground foundation work
Formation	sticky, soft, medium hard, hard formation
Sealed type	Rubber & Metal Sealed
Cutter Shape	Incisor, DogBone , Ace, Chisel, Conical
Drilling Life	Standard 90 hours at least
"More Hole For YourMoney"-----Long working life and high reliablelity!

Inch(in)	57/8	6	61/8	61/4	77/8	83/8	81/2	83/4	91/2	95/8	93/4	97/8	121/4	133/4
Metric(mm)	149.2	152.4	155.6	158.7	200	212.7	215.9	222.2	241.3	244.5	247.3	250.8	311.1	349.2
BitType (IADC)	437	437	437	437	447	417	417	417	417	417	417	417	417	417
	517	517	517	517	517	437	437	437	437	437	437	437	437	437
	537	537			537	517	517	517	517	517	517	517	517	517
	617	617			547	537	537	537	537	537	537	537	537
	637	637			617	617	617	617
						637	637	637
APIRegular Pin (in)	3 1/2				4 1/2				6 5/8
Recommendedmake-up torque for bit shank (KN.m)	9.50-12.2				16.30-21.70				37.93-43.30

1>Cutting Structure
The durability of premium tungsten carbide insert is improved with new formulas and new techniques.
2>Gauge Structure
Multiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3>Bearing Structure
High precision bearing with two thrust faces. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.
4>Seal and Lubrication
Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
5>Product Application

It can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.