305mm 4 Wings Step Drag Bits with Diameter 12' X 4 1/2' API Reg Pin Thread

China 305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread, Find details about China Drag Bit, Rotary Drill Bit from 305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread

Drilling Type
Rotary
Quality
You Deserve The Best
Rock Formation
Soft. Sand, Clay, Shale, Gravel, Limestone ...
Trademark
SINODRILLS
Transport Package
Plywood Box
Specification
279mm 11′′
Origin
China
HS Code
8207199000
Drilling Type
Rotary
Quality
You Deserve The Best
Rock Formation
Soft. Sand, Clay, Shale, Gravel, Limestone ...
Trademark
SINODRILLS
Transport Package
Plywood Box
Specification
279mm 11′′
Origin
China
HS Code
8207199000

305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread

3 wings step drag bits are one piece construction of alloy steel cast with tungsten carbide cutting tips and gauge sides to ensure longer life.

3 wings step drag bits are economical tools when drilling softer geological formations and shallower depths, they are primarilydesigned for soft tomedium formations, such as Clay, Loam, Silt ,Mostsoft-to-medium soilsthat have some moisture, etc. And also step drag bits are recommended for drilling in Mining, Exploration, Environmental, Water well, Geo Exchange, etc.

 
Product specification
                              3 wings  step drag bit 
           Diameter Thread Part No. 
2"50.8 mm optional 3S2 
2 1/2"63.5mmoptional 3S212 
2 5/8"66.7 mmoptional 3S258 
2 3/4"69.9 mmoptional 3S234 
2 7/8"73.0 mmoptional 3S278 
2 15/16"74.6 mmoptional 3S21516 
3"76.2 mmoptional 3S3 
3 1/8"79.4 mmoptional 3S318 
3 1/4"82.6 mmoptional 3S314 
3 1/2"88.9 mmoptional 3S312 
3 5/8"92.1 mmoptional 3S358 
3 3/4"95.3 mmoptional 3S334 
3 7/8"98.4 mmoptional 3S378 
4"101.6 mmoptional 3S4 
4 1/8"104.8 mmoptional 3S418 
4 1/4"108.0 mmoptional 3S414 
4 1/2"114.3 mmoptional 3S412 
4 5/8"117.5 mmoptional 3S458 
4 3/4"120.7mm optional 3S434 
4 7/8"123.8mm optional 3S478 
5"127.0mm optional 3S5 
5 1/8"130.2mm optional 3S518 
5 1/4"133.4mm optional 3S514 
5 3/8"136.5mm optional 3S538 
5 1/2"139.7mm optional 3S512 
5 5/8"142.9mm optional 3S558 
5 3/4"146.1mm optional 3S534 
5 7/8"149.2mm optional 3S578 
6"152.4mm optional 3S6 
6 1/8"155.6mm optional 3S618 
6 1/4"158.8mm optional 3S614 
6 1/2"165.1mm optional 3S612 
6 5/8"168.3mm optional 3S658 
6 3/4"171.5mm optional 3S634 
6 7/8"174.6mm optional 3S678 
7"177.8mm optional 3S7 
7 1/8"181.0mm optional 3S718 
7 1/4"184.2mm optional 3S714 
7 3/8"187.3mm optional 3S738 
7 1/2"190.5mm optional 3S712 
7 5/8"193.7mm optional 3S758 
7 3/4"196.9mm optional 3S734 
7 7/8"200.0mm optional 3S778 
8"203.2mm optional 3S8 
8 1/8"206.4mm optional 3S818 
8 1/4"209.6mm optional 3S814 
8 1/2"215.9mm optional 3S812 
8 5/8"219.1mm optional 3S858 
8 3/4"222.3mm optional 3S834 
8 7/8"225.4mm optional 3S878 
9"228.6mm optional 3S9 
9 1/8"231.8mm optional 3S918 
9 1/4"235.0mm optional 3S914 
9 1/2"241.3mm optional 3S912 
9 5/8"244.5mm optional 3S958 
9 3/4"247.7mm optional 3S934 
9 7/8"250.8mm optional 3S978 
10"254.0mm optional 3S10 
10 5/8"269.9mm optional 3S1058 
11 1/2"292.1mm optional 3S1112 
12"304.8mm optional 3S12 
12 1/4"311.2mm optional 3S1214 
12 1/2"317.5mm optional 3S1212 
13 3/4"349.3mm optional 3S1334 
14"355.6mm optional 3S14 
14 3/4"374.7mm optional 3S1434 
15"381.0mm optional 3S15 
15 3/4"400.1mm optional 3S1534 
17 1/2"444.5mm optional 3S1712 
                                      

Product photos





305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread


305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread


 


Related products
 
Hammer sizeShank type                Recommended DTH bits diameterWorking pressure
 3.5"/3" DTH hammer  COP32, COP34, DHD3.5, MISSION30 90mm - 105mm8-30 bar
 4" DTH hammer  DHD340, QL40, MISSION40, SD4, TD40, COP44, COP44 GOLD, COP42 110mm - 130mm8-30 bar
 5" DTH hammer DHD350, QL50, MISSION50, SD5, TD50, COP54, COP54 GOLD 134mm - 152mm8-30 bar
 6" DTH hammer DHD360, QL60, MISSION60, SD6, TD60, COP64, COP64 GOLD, COP66 152mm - 203mm8-30 bar
 8" DTH hammer DHD380, QL80, MISSION80, SD8  203mm - 305mm8-30 bar
10" DTH hammer SD10, Numa100 240mm - 311mm17-24 bar
 12" DTH hammer DHD112, SD12, QL120, Numa120311mm - 445mm17-24 bar


What we do
 
Down The Hole rock drilling toolsTop hammer rock drilling tools  Self drilling anchor systemDrag bits
305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread
-  DTH hammers
-  DTH bits
-  DTH drill pipes
-  Odex and Symmeric drilling
-  Taper drill bits and rods
-  Threaded buttons bits and drill rods
-  Shank adapters
-  Couplings
- Threaded hollow anchor bars.
-  Accessories ( drill bit, coupling, nut, plate, centralizer etc.)
-  Step drag bit (3 wings, 4 wings )
-  Chevron drag bit (3 wings, 4 wings )
ApplicationApplication Application Application 
Mining, quarry, water well drilling, geothermal drilling, construction foundation work etc.Mining, quarry, construction foundation work tunnel roof support, slop stability, Soil nailing, rock bolting, micropile etc.mining, water well drilling, geothermal drilling etc.
 
Our company
 
305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread


Our Workshop
 
305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread
305mm 4 Wings Step Drag Bits with Diameter 12′′ X 4 1/2′′ API Reg Pin Thread


FAQ
 
 
Q1: Are you a manufacturer? 
A1: Yes, we own 2 plants to manufacture various drilling products, including TH (top hammer) drilling products, DTH drilling products, self-drilling anchor systems and drag bits.
       So we are a one-stop supplier of full range of rock drilling products.

 
Q2: What qualifications do you have? 
A2: Till 2016, we have following qualifications:
-  ISO 9001:2008 quality management system;
-  3AA2 credit rating by Dun & Bradstreet;
-  Honoring Contract and Keeping Promise Enterprise by AIC;
-  EC examination certificate for self-drilling anchor bars;
-  2 invention patents & 6 utility patents.
  
Q3: Where did you export and what was your annual export amount? 
A3: Till 2020 we have exported to 105 countries and our average annual export amount within recent 3 years is 30 million USD.
 
Q4: What kind of payment terms do you offer and what is your best payment terms? 
A4: We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc. Our best payment terms is 120 days after shipping date for our distributors and sole distributors.
 
Q5:Do you offer warranty on your products? 
A5: Yes, for different products we offer different warranty that cover all manufacturing defects in materials and workmanship. The longest period of warranty is 2 years after shipping date.
 
Q6: Do you offer OEM service? 
Q6: Yes, we offer OEM service if you have regular requirement.