$20.00
1 Piece (MOQ)
Taper Shank Straight Flute Bit Spade Core Drill
Zhejiang Xinxing Tools Co., Ltd.
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12 1/4" Triconic Drill Bits with Tungsten Chisel Type Teeth
| Price | Negotiable |
|---|---|
| Min Order | 1 Piece |
| Availability | In Stock |
| Shipping From | Anhui, China |
| Popularity | 387 people viewed |
Model NO.:
12 1/4
Customized:
Non-Customized
Standard:
API
Length:
Taper-length
Type:
Center Drill Bit
Material:
High Carbon Steel
Usage:
Well Drilling, Masonry Drilling
Trademark:
ROSCHEN
Transport Package:
Wooden Box
Specification:
6 1/2", 8 5/8", 9 7/8", 12 1/4"
Origin:
China
HS Code:
84314320
Product Description
Roschen is a professional supplier of drilling tools. With years of study and refining of the introduced technology, our products own better characters of service and ranges of application.Mainly used for oil and gas,mining,geothermal,construction and so on.Our products have been sold all over the world, including the United States, England, Canada, Brazil, Russia, Italy, Iran, Saudi Arabia, Korea, India, and Poland and so on.
2. Parameters
| IADC CODE SELECTION LIST | |||
| IADC | WOB | RPM | Application |
| (KN/mm) | (r/min) | ||
| 111/114/115 | 0.3-0.75 | 200-80 | very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk |
| 116/117 | 0.35-0.8 | 150-80 | very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk |
| 121 | 0.3-0.85 | 200-80 | soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone |
| 124/125 | 180-60 | ||
| 131 | 0.3-0.95 | 180-80 | soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds |
| 136/137 | 0.35-1.0 | 120-60 | |
| 211/241 | 0.3-0.95 | 180-80 | medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds. |
| 216/217 | 0.4-1.0 | 100-60 | |
| 246/247 | 0.4-1.0 | 80-50 | medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite |
| 321 | 0.4-1.0 | 150-70 | medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble |
| 324 | 0.4-1.0 | 120-50 | |
| 437/447/435 | 0.35-0.9 | 240-70 | very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone |
| 517/527/515 | 0.35-1.0 | 220-60 | soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone |
| 537/547/535 | 0.45-1.0 | 220-50 | soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds |
| 617/615 | 0.45-1.1 | 200-50 | medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite |
| 637/635 | 0.5-1.1 | 180-40 | hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble |
| Note: Above limitts of WOB and RRPM should not be used simultaneously | |||
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