Xiamen Zhaoxing Machinery & Electric Equipment Co., Ltd.: Xiamen, Fujian, China; Main products: dth hammer, drill bits, button bits, air compressor and drilling rig, drill rod

Home
Product Categories

Air Compressor

Drill steel rod

Drilling rig

DTH drill bit

DTH hammer

New Products

Tapered drill bit

thread rock bit

Water well, oil, gas and construction drilling
Company Profile

Company Introduction

Photo Gallery
Blog
Quality Control
Contact Us

Home > Products > Water well, oil, gas and construction drilling > 12 1/4 Inch Big Size Oil Drill Bits

12 1/4 Inch Big Size Oil Drill Bits

FOB Price

US$ 100 - 300 / Piece

5 Pieces(Min. Order)

Port Xiamen
Payment TermsCredit Card PayPal

Request Sample Customized Request Request Free Catalogs

Contact Now

Get lowest price

Product Details

Place of Origin	Fujian, China	Brand Name	Zhaoxing
Model Number	ND275	Type	Core Drill Bit
Material	Tungsten Carbide	Use	Well Drilling

Product Description

Specifications

oil drill bits
1. Steel Carbide
2.16 years experience
3.Widely used for mining
4.Quality closed to Atlas. best price

12 1/4 inch big size oil drill bits -- ND275

Xiamen Zhaoxing Machinery & Electric Equipment Co., Ltd is professional and specialized in Middle Air Pressure DTH Hammers, High Air Pressure DTH Hammers, Big Hole DTH Hammers, Reverse Circulation Hammers, Down The Hole Bits, Overburden Dirllng, Hole Opener Bits, Thread Bits.

According to different drilling application, we have different design to meet customers with good quality and good price .

1	Type	Waterwell, Oil and Construction DTH Bits
2	Material	Steel + Carbide
3	Application	Mining, Quarrying, Ground engineering
4	Advantage	Quality closed to Atlas, and competitive price
5	Button bit face shape design	Concave face, Convex face, Double gauge face, Flat face
6	Carbide button shape design	Domed/Round button,Parabolic/Semi-Ballistic Buttons, Ballistic Button, Sharp Button, Flat Button
7	Certificate	ISO9001
8	Package	Inner package with cartons,outer package with wooden case
9	Delivery	Within 20days after receive your payment
10	Payment Terms	T/T Western Union MoneyGram
11	MOQ	10 pcs/size

12 1/4 inch big size oil drill bits-- ND275

Drill Bit	Bit Dia. (mm)		Air Holes No.	Gauge Buttons	Front Buttons
Drill Bit	mm	inch	Air Holes No.	Gauge Buttons	Front Buttons
ND275	311	12 1/4	3	15*Φ18	36*Φ16
	311	12 1/4	3	15*Φ18	36*Φ16
	334	13 1/7	3	18*Φ19	44*Φ18
	356	14	3	18*Φ19	48*Φ18
	368	14 1/2	3	20*Φ19	50*Φ18
	381	15	4	20*Φ19	54*Φ19
ND330	381	15	4	20*Φ19	54*Φ18
	381	15	4	20*Φ19	54*Φ18
	406	16	4	20*Φ19	58*Φ18
	431	17	4	20*Φ19	64*Φ18
	445	17 1/2	4	24*Φ20	72*Φ18
	470	18 1/2	4	24*Φ20	80*Φ18
ND475	495	19 1/2	4	24*Φ20	88*Φ18
	495	19 1/2	4	24*Φ20	88*Φ18
	525	20 2/3	4	24*Φ20	100*Φ18
	580	22 7/8	4	24*Φ20	116*Φ18
	660	26	4	28*Φ20	140*Φ19
	680	26 3/4	4	28*Φ20	144*Φ19
ND525	711	28	4	28*Φ20	154*Φ19
	711	28	4	28*Φ20	154*Φ19
	762	30	4	32*Φ20	172*Φ19
	780	30 3/4	4	32*Φ20	180*Φ19
	825	32 1/2	4	36*Φ20	216*Φ19
	998	39 1/4	4	40*Φ20	348*Φ19

Bit Face Shape Selection

Drop Center Bit

For high penetration rates in soft to medium hard and fissured rock formatios Low to medium air pressures. Maximum hole deviation control.

Concave Face

the all-round application bit face specifically for medium hard and homogenerous rock formations Good hole deviation control and good fIushing capacity

Convex Face

For hiigh penetration ratas m soft to medium-hard wlth low to medium air pressures It is the most rasistance to steel wash. and many reduce the load and wear on the gauge buttons. but
poor hole deviation control.

Double Gauge Face

This kind face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high aii pressures and good resistance to steel wash step gauge bit.

Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formations in appllications with high air pressure. Good penetration rates an resistance to steel wash.

carbide button shape selection

Domed/Round Button

Domed /Round Buttons are usually used as gauge buttons of DTH Bits. suitable for very abrasive and very hard formations.

Parabolic/Semi- Ballistic Buttons

Parabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.

Ballistic Button

Ballistic Buttons are usually used as front buttons of DTH Bits,suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.

Sharp Button

Sharp Buttons are usually used as front buttons of DTH bits for soft formations where fast penetration rates are possible and

Flat Button

Flat buttons are usually used as protection buttons to reduce Near on rubbing surfaces of DTH Bits.

Contact Us

Xiamen Zhaoxing Machinery & Electric Equipment Co., Ltd.: Contact nameJenny Lin
Chat Now; Phone86-0592-5689018; Address185-9 Dongdu Road, Xiamen, Fujian

*Email
Please enter Your valid email address.
*To

Jenny Lin
*Message
Your inquiry content must be between 20 to 5000 characters.
Please enter a correct verification code.

Product Categories

Air Compressor	Drill steel rod	Drilling rig	DTH drill bit
DTH hammer	New Products	Tapered drill bit	thread rock bit
Water well, oil, gas and construction drilling

12 1/4 Inch Big Size Oil Drill Bits

You May Like

Product Details

Product Description

Specifications

Contact Us

Product Categories

New Products

Popular Searches

Recommended Products

Find Similar Products By Category