drag bits - 3 rings

drag bits, 1.high quality and competitive price, 2.large number of stock, 3.4.1/2", 4.3/4", 5.1/8", 5.5/8", 5.7/8", 6.1/4"...... - more info check here: http://www.buyindustrialtools.com/drag-bits-10078304/

Quick Brief

Place of Origin: Hebei China (Mainland) Brand Name: ZK Model Number: 3 rings Type: Center Drill Bit Material: Tungsten Carbide Use: Well Drilling size: 118mm~245mm

Product Features:

drag bits

1.high quality and competitive price

2.large number of stock

3.4.1/2", 4.3/4", 5.1/8", 5.5/8", 5.7/8", 6.1/4"......

Business Terms:

Port: tianjin

Minimum Order Quantity: 10 Piece/Pieces

Supply Ability: 3000 Piece/Pieces per Month

Payment Terms: L/C,T/T

Contact Supplier

Specifications and Product Details:

Product description:

Drag bits also named blade bits, with a TC inserts on the blades.

They are usually designed for use in soft formations such as sand, clay, or some soft rock.

Their uses include drilling water wells, mining, geothermal, environmental and exploration drilling.

Whenever possible, they should be used to drill pilot holes, for they produce cuttings that are easiest to log.

Usually drag bits are three wings, while sometime people need four wings or five wings.

Three wings stepped drag bits:

Drag bits are made according to API standard or NROD thread standard or others.
Various step and chevron drag bits are available from 2 inch to 17 1/2 inch.
There is very good feedback because of the quality and price.
Different drag bits can be made according to your drawings or samples.

Advantage:

1) Super long life-10 times than cemented carbide drill bits under the same condition.
2) High efficiency-Time of lifting the drilling machine could be reduced sharply, and the average time effciency could be increased more than 2 times
3) Wide range of application-it could have a penetration of rock formation with f≤ 12, especially for the rock formation with f=5-10.