Product Details

Specifications

core bit
1.High quality with reasonable price
2. Fast drilling rate
3. Strong cutting structuly
4.custom

core drill bit for steel

Our Services

support custom,i will at your service at any time.

Product Description

Main products: tricone bits,pdc bits,Single cone bit,assembly bits,etc.

Size:2 inch~36 inch.

IADC:114 115 125 215 216 217 247 324 325 417 427 515 527 535 537 617 737 827 837

Different IADC CODE fits different formation

IADC	WOB (KN/mm)	RPM (r/min)	Applicable Formations
114/116/117	0.3~0.75	180~60	Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.
124/126/127	0.3~0.85	180~60	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
134/135/136/137	0.3~0.95	150~60	Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
214/215/216/217	0.35~0.95	150~60	Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.
227	0.35~0.95	150~50	Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.

IADC	WOB (KN/mm)	RPM (r/min)	Applicable Formations
417/437/ 447/415/435	0.35~0.9	150~70	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	140~60	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
537/547/535	0.45~1.0	120~50	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	90~50	Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc
637/635	0.5~1.2	80~40	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.

Company Information

Hejian Hengji Bit Manufacture Co., Ltd we have been in line with the belief of "faith-based, quality of survival and mutual benefit, provides the highest quality products and attentive service for our customers". We are looking forward to establishing relationships with you in the near future.

Packaging & Shipping

FAQ

1. How to order the products?Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.

2. About lead time and shipping time?Answer :
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.

3.Can I expect a quality products? Answer :
Yes. 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.