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drag bit
Product name : drag bit
Item :
Details :
 Introduction

Models:

Ф60mm-Ф610mm

Features:

Fastest penetration rate, the highest wear resistance, the longest life expectancy, harsh environments well drilling ability.

Set high quality tungsten alloy, the use of advanced welding technology and accurate heat treatment many times.Widely 

used in geological exploration, coal mining, mining of drilling engineering, water conservancy and other industries.
Can be customized according to customer's request all kinds of special-shaped bit type and buckle.

Bit
Stock Sizes
Thread

Two-Step Auger Bit

3 5/8" - 4"
2" HDFA Box


Bits In-Stock Sizes Available Threads
Three-Wing and Four-Wing Chevron 37/8" – 26" 23/8", 27/8", 31/2", 41/2", 65/8" API Regular Pin
Three-Wing and Four-Wing Chevron Kelly Bit 37/8" – 26" MHJR, MHR, FEDP, IF


Drag Bits Step Type One Piece 3-way

Bit Size Pin Type
2-3/4″ – 3-1/2″ 4 THD N-ROD
3-5/8″ – 4-3/4″ 2-3/8″ API PIN
4-7/8″ – 5-1/8″ 2-3/8″ API PIN
5-1/4″ – 5-1/2″ 2-3/8″ API PIN
5-5/8″ – 6″ 2-3/8″ API PIN
6-1/8″ – 6-1/4″ 2-3/8″ API PIN
6-1/2″ – 6-3/4″ 2-3/8″ API PIN
5-1/2″ – 6-3/4″ 3-1/2″ API PIN
6-7/8″ – 7-7/8″ 3-1/2″ API PIN
8″ – 9″ 3-1/2″ API PIN
9-1/8″ – 10-7/8″ 3-1/2″ API PIN
7-7/8″ – 8-7/8″ 4-1/2″ API PIN
9″ – 9-7/8″ 4-1/2″ API PIN
10″ – 10-7/8″ 4-1/2″ API PIN
11″ – 12-1/4″ 3-1/2″ OR 4-1/2″ API PIN

Kelly Bits

Bit Size Box Connection
3-7/8″ ARCO, 2″ IF
4-3/4″ – 5-1/4″ 2-3/8″ MHJR, FA, MR, IF
5-1/2″ – 6-3/4″ 2-3/8″ MHJR, FA, MR, IF
6-7/8″ – 7-7/8″ 2-3/8″ MHJR, FA, MR, IF
8″ – 10″ 2-3/8″ MHJR, FA, MR, IF

H.D. Chevron One-Piece Bits

Bit Size Pin Type
3/4″ – 2-1/2″ A-ROD, AW
2-5/8″ – 2-7/8″ A-ROD, AW
2-3/4″ – 3-1/4″ 3THD/4THD N-ROD, 2″ IF
3-3/8″ – 3-3/4″ 3THD/4THD N-ROD, 2″ IF
3-3/4″ – 4-3/4″ 2-3/8″ API PIN
4-7/8″ – 5-1/8″ 2-3/8″ API PIN
5-1/4″ – 5-1/2″ 2-3/8″ API PIN
4-5/8″ – 5″ 2-7/8″ API PIN
5-1/8″ – 5-1/2″ 2-7/8″ API PIN
5-1/2″ – 6-1/4″ 3-1/2″ API PIN
6-1/2″ – 6-3/4″ 3-1/2″ API PIN
7″ – 7-1/2″ 3-1/2″ API PIN
7-5/8″ – 8″ 3-1/2″ API PIN








Contact US

  • Name: Candy
    Tel: 86-0411-85566112
    Fax: 86-0411-85566112
    Mobile: 18041146318 (张女士)
    E-mail: candy@terrintta.com
    Add: sanjiazi industrial Park,Wafangdian City,China

    MSN: terrintta2@hotmail.com SKYPE: terrintta_2 QQ: 1127216112

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