0086-15032448780           

Have any questions?

Candy Qian    
 

candy@crossingbit.com
 

whatsapp:0086-15128736973

Nicole Liu 

 

crossingbit1@163.com

Abby Hu    
sales@crossingbit.com
whatsapp:0086-15032448780

Copyright © 2017 Hebei Crossing Drill Bit Manufacture Co.,LTD. All rights reserved. 冀ICP备17080623号  300.cn

PRODUCTS

Product name

Step Drag Bit

Affiliate classification
没有此类产品
Previous
Product description

Drag bit are manufactured from forged high quality alloy steel and PDC cutter insert, plus state of art welding technology and multiple precision heat treatment to provide highest penetration rate and longest lifespan at roughest condition. Drag bits are designed for medium to hard formation and are used in areas that contain a lot of rock and also in the oil field.

Size Type Pin Wt. (lbs.)
3 7/8" - 4 3/4" 2 3/8" API Pin 6
4 7/8" - 5 1/8" 2 3/8" API Pin 7
5 1/4" - 5 1/2" 2 3/8" API Pin 8
4 5/8" - 5" 2 7/8" API Pin 10
5 1/8" - 5 1/2" 2 7/8" API Pin 11
5 5/8" - 6 1/4" 3 1/2" API Pin 18
6 1/2" - 6 3/4" 3 1/2" API Pin 19
7" - 7 1/2" 3 1/2" API Pin 21
7 5/8" - 8"-12 1/4 3 1/2" API Pin 4 1/2 6 5/8 23

 

3 wings step drag bits

 

 

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. It has 3 wings and 3 flushing holes. Compared with 4 wings, 3 wings step drag bits tend to drill faster and aggressive, whereas, are shorter lasting and less durable.3 wings step style drag bits will produce larger cuttings force than chevron style drag bit. Rotary table speed ofstep drag bits should be between 60 and 80 rpm with light weight on bit (WOB).

 

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.

 

 

3 wings step drag bits
Diameter Thread
2 to 17 1/2 inch 50.8 to 444.5mm Optional

 

Note: The diameter and thread showed as above are usual size, other sizes are available upon request.

Thread size: 2 3/8'' API Reg, 2 7/8'' API Reg, 3 1/2'' API Reg, 4 1/2'' API Reg, 6 5/8'' API Reg, 2'' API IF, 2 3/8'' API IF, 2 7/8'' API IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.

 

Sinodrills drag bits features:

1, A solid one piece heat treated, 4140 alloy steel body for bit strength & durability;

2, CNC threaded machining for proper installation &use;

3, Forgings are milled to better seat the carbide inserts.

4, Select tungsten carbide inserts 5.5mm thick are standard.

5, Relief is hand ground behind carbide inserts for maximum performance.

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待

Contact:

 

Email:sales@crossingbit.com 
Tel(whatsapp):0086-15032448780