DTH ST-B Carbide 17 1/2 Inch Water Well Drill Bits

DTH Drilling Tools With Carbide Inserts Step Drag Water Well Drill Bits

1. Description

Step Drag Bits also named blade bits, with a Tungsten Carbide inserts on the blades.

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

Three wings step drag bits:

A. Drag bits are made according to API standard or no thread standard just welding

B. Various step and chevron drag bits are available from 3 inch to 17 1/2 inch. (normal small size are 3”,3 3/4”,3 7/8”,4 3/4”,4 5/8”,5 7/8” and so on)

C. There is very good feedback from our customers because of the quality and price.

D. Different drag bits can be made according to your drawings or samples.

2. Applications for the drag bits

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 are easiest to log.

3. Types of drill drag bits

Normally drag bits are 3 wings, but we can make 4 or 5 wings following your drawings or samples. Many special designs are available upon your request.

4. Main Features

• Adopting advanced technique and mature process to manufacture.
• Drilling speed is high in soft to medium hard rocks.
• Have long service life.
• Suit with hydraulic drilling rig.
• Wear resistance and high impact toughness

Jinzhou City Shitan Machinery Equipment CO. LTD. is a professional production and

processing company for core drilling rigs, crawler drilling rigs, various track chassis, various

types of mud pumps, various track transport vehicles, etc. It is one of the outstanding

manufacturers of similar products in North China. Strong technical force. The modern production

equipment and complete testing means are specialized in the development, manufacture and

marketing of drilling rigs.

To ensure the quality and stability of the machine, we use the most advanced production and testing

equipment, Made from high quality materials, with fashion and compact design, that keeps our drilling

rigs more efficiency and with low failure rate, more economic and durable, and with a high comprehensive

cost performance. Our water drilling rigs have received the real market validation as the majority of our

customer’s positive feedback.

The company's main products are rigs: XY-1, XY-1A, XY-1B, GK-180, GK-200, DPP-100 and other series

of drilling rigs: gearbox assemblies and gyro assemblies for various rigs, Winch assembly, reducer assembly,

pump assembly. Drilling tools: sedimentary pipe joints, casing joints, casing couplings, drill pipe joints, casing

core pipes, lifters, automatic drop hammers, earth borrowers, standard penetrations, forks, lock joints, alloy drill

bits Hundreds of drilling tools, such as steel sand drill bits, core pipe joints, drill pipe pliers, and casing pliers.

Jinzhou City Shitan Machinery Equipment CO. LTD. has a complete and scientific quality management

system. The integrity, strength and product quality of Jinzhou Stone Exploration Machinery Co., Ltd. have been

recognized by the industry. Welcome friends from all walks of life come to visit, guide and negotiate business!