step drag bits - 118mm

step 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: //www.buyindustrialtools.com/step-drag-bits-10185581/

Quick Brief

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

Product Features:

step 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 Port

Minimum Order Quantity: 10 Piece/Pieces the more the cheaper

Supply Ability: 3000 Piece/Pieces per Month more

Payment Terms: L/C,T/T,Western Union

Contact Supplier

Specifications and Product Details:

Stepped drag bit is a drill bit uses in soft formations such as sand, clay, or some soft rock.

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.

Advantages:

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.