121/4" IADC Code 637 G Ball Tooth Round Tooth for Granite Rock Drilling

• Type: Drill Bit
• Material: Alloy Steel, Tungsten Carbide
• Model Number: Steel Tooth Bit, TCI Bit
• Certification: API & ISO
• Bearing Type: Sealed Bearing and Non-Sealed Bearing
• Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
• Model NO.: IADC CODE
• Color: Blue or Red
• IADC Code: 114~837
• Transport Package: Wooden Case
• Trademark: HJ
• Origin: China
• HS Code: 8207191
• Production Capacity: 500

Product Description

121/4" IADC code 637 G ball tooth round tooth for Granite rock drilling

Available sizes:From 2 7/8 to 26"  
 
Advantage:most favourable price and high quality
 
Bearing type: sealed bearing and non-sealed bearing 
                           metal sealed journal bearing 
                           rubber sealed journal bearing 
cutting structure:The back cone and the teeth all surface is are hardfaced strengthening, improved steel tooth shape and welding materials,showing teeth higher
Application formation:Soft with low compressive strength and high drillability, such as shale, clay, salt bed and etc
 
All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request. 

IADC		437	517	537	617	637	737
WOB	KN/mm (bit dia.)	0.5-0.75	0.5-0.85	0.5-0.85	0.55-0.85	0.55-0.85	0.55-0.85
	Lb/in (bit dia.)	2860-4280	2860-4860	2860-4860	3140-4860	3140-4860	3140-4860
	r.p.m	70-45	70-45	70-45	70-45	60-40	60-40

SIZE	TYPE	PIN SIZE	WEIGHT(ibs.)
4 3/4	IADC517,547	2 7/8	24.2
4 7/8	IADC547	2 7/8	26.4
5 1/2	IADC547	3 1/2	29.7
5 5/8	IADC547	3 1/2	30.2
5 2/3	IADC546	3 1/2	30.8
6	IADC417,447	3 1/2	35.2
6 1/8	IADC547	3 1/2	37.4
6 1/4	IADC517,537	3 1/2	37.4
6 1/2	IADC517,547,817	3 1/2	44
6 3/4	IADC517,537	3 1/2	50.6
7 1/2	IADC517,545,547,625,627,835	4 1/2	66
7 7/8	IADC417,517,527,537,817	4 1/2	72.6
8 1/2	IADC417,435,437,517,535,537,547,625,627,635,745,835,837	4 1/2	81.4
8 3/4	IADC437	4 1/2	88
9 5/8	IADC535	6 5/8	121
9 7/8	IADC517,537,737	6 5/8	127.6
10 5/8	IADC437,535,537,545,547,627,745	6 5/8	167.2
11	IADC617	6 5/8	173.8
11 5/8	IADC535,545,625	6 5/8	198
12 1/4	IADC437,517,535,537,617	6 5/8	204
15 1/2	IADC545,615	7 5/8	440
17 1/2	IADC535,545	7 5/8	594