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12 1/4 IADC417 High Quality Rock Drill Bit

US$ 500 - 30,000 MOQ: 1 Piece

Key Specifications

Place of Origin:

Hebei, China

Brand Name:

SRF

Model Number:

IADC417

Hejian Zhongcheng Drill Bit Manufacture Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

Tianjin seaport or Beijing airport

Delivery Detail:

Delivery time depends on order quantity.

Place of Origin Hebei, China

Brand Name SRF

Model Number IADC417

Type Drill Bit

Machine Type Drilling Equipment

Certification API

Material High Manganese Steel

Processing Type Casting

Use Well Drilling

TRI-CONE ROCK BITS

Recommended drilling parameters of tri-cone rock bits

Rock formation		Bit type	Bit size		Drilling weight	Rotary speed
Rock formation		Bit type	mm	inch	kN/mm	r/min
Very soft	Soft Marl, Clays, Sands, Salts etc.	1	187.3~346.1	7 3/8~13 5/8	441~735	120~50
soft	Clays, Soft Shale, Marl, Sands, Salts etc.	2	95.2~174.6	3 3/4-6 7/8	245-490	100-50
soft	Clays, Soft Shale, Marl, Sands, Salts etc.	2	187.3~346.1	7 3/8-13 5/8	490-784	90-40
Medium soft	Shale, Marl, Sandstone, Soft Limestone etc.	3	95.2~174.6	3 3/4-6 7/8	245-490	80-40
Medium soft	Shale, Marl, Sandstone, Soft Limestone etc.	3	187.3~311.1	7 3/8- 12 1/4	490-784	80-40
medium	Hard Shale, Limestone, Medium/Hard Sandstone etc.	4	95.2~174.6	3 3/4-6 7/8	294-539	80-60
medium	Hard Shale, Limestone, Medium/Hard Sandstone etc.	4	187.3~241.3	7 3/8-9 1/2	539-833	60-40
medium hard	Hard Dolomite, Limestone, Hard Sandy, Rock etc.	5	95.2~174.6	3 3/4-6 7/8	294-539	80-60
medium hard	Hard Dolomite, Limestone, Hard Sandy, Rock etc.	5	187.3~241.3	7 3/8-9 1/2	539-833	60-40
hard	Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.	6	95.~-174.6	3 3/4-6 7/8	294-539	80-40
hard	Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.	6	187.3-215.9	7 3/8-8 1/2	580-882	60-40
Very hard	Quartzite, Chert, Basalt Granites, Pyrites etc.	7	95.2-174.6	3 3/4-6 7/8	294-539	80-40

IADC code	WOB (KN/mm)	RPM (r/min)	Applicable Formations
437/447/435	0.35~0.9	240~70	Very soft formations with low compressive strength and high drillability,such as clay,mudstone,chalk,gypsum,salt,soft limestone, etc.
517/527/515	0.35~1.0	220~60	Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,soft limestone, etc.
537/547/535	0.45~1.0	220~50	Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc.
617/615	0.45~1.1	200~50	Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc
637/635	0.5~1.1	180~40	Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc.
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.