Tungsten Carbide 3 Wings Step Drag Bits/Drag Bits

Brand Name:Aoxing
Certification:ISO9001
Model Number:2 7/8′′-- 12′′
Minimum Order Quantity:1 Piece
Place of Origin:Hebei,China
Supply Ability:300 Piece/Month
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Location: Hengshui Hebei China
Address: Xiaoliutun Industrial Zone, Jingzhou Town, Jing County, Hengshui City, Hebei Province China
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Product Details

Tungsten Carbide 3 Wings Step Drag Bits/Drag Bits


Product Application:

The drag bit is designed for use in soft formations such as sand, clay, or some soft rock.Step type bits are the most common type of drag bit used widely for soft to medium formations. Step-type drag bits are very effective in drilling soft and unconsolidated material. They are available in a full range of sizes from 3" to 17 1/2".The design of step-type drag bits provides for fast drilling penetration and requires only moderate drilling weight for proper operation. A large center flushing hole is incorporated into our design for efficient removal of cuttings.

Chevron-type drag bits are recommended for drilling in slightly harder and more consolidated materials. Best suited for abrasive conditions, Chevron-type drag bits are also available in a full range of sizes from 3" up to 17 1/2".The clean design, use of premium tungsten carbide and rugged construction of these fine drilling tools ensures effective performance in a variety of ground conditions.


Product Description

Drag bit is used in soft to medium formation such as sand, clay, or some soft rock for water well drilling, mining, geothermal, environmental and exploration drilling. When the DTH hammer or tricone bit lose their effectiveness and then the drag bit is used, the cleaning of the hole is realized by the injection of air or water. They are not suitable in coarse gravel or hard rock formations.

SizeThreadApprox.weight (lbs. )
2 3/4 - 3 1/2N - Rod3
3 1/2 - 4 3/42 3/8" API REG4 - 6.7
4 7/8 - 5 1/82 3/8" API REG8.4 - 8.7
5 1/4 - 5 1/22 3/8" API REG8.8 - 9.5
5 5/8 - 62 3/8 , 3 1/2 API Pin9.4 - 10.6
6 1/8 - 6 1/42 3/8 , 3 1/2 API Pin10.7 - 17
6 1/2- 6 3/42 3/8 , 3 1/2 API Pin18 - 18.6
5 1/2 - 6 3/42 3/8 , 3 1/2 API Pin19 - 20.5
6 7/8 - 7 7/82 3/8 , 3 1/2 API Pin G21.2 - 22.7
8 - 93 1/2, 4 1/2 API Pin22.8 - 23.4
9 1/8 - 10 7/83 1/2, 4 1/2 API Pin23.6 - 31.3
7 7/8 - 8 7/83 1/2, 4 1/2 API Pin30 - 33.5
9 - 9 7/83 1/2, 4 1/2 API Pin G34.5 - 36
7 7/8 - 9 7/8 (4 wing)3 1/2, 4 1/2 API Pin25.6 - 28.2
7 7/8 - 10 (4 wing)3 1/2, 4 1/2 API Pin G44.5 - 50.7
10 5/8 -113 1/2 4 1/2 API Pin
12 -17 1/26 5/8" API REG Pin

Main features

1, All drag bits blades originate from high quality of heat treated alloy steel forgings.;
2, Carbide inserts are individually brazed using 50% nickel silver alloy;
3, Use high grade carbide inserts only;
4, All drag bits are built to the gauge tolerances.

Product application

Drag bit is a kind of economic drill bit used in soft formations such as sand, clay, or some soft rock(not well for rough gravel) .

Dia.3" (89mm)~ 17 1/2"(444mm);
Connection threads: 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 7/8'' API IF, etc.
Wings: Three wings, four wings;
Type: Chevron and Step type

China Tungsten Carbide 3 Wings Step Drag Bits/Drag Bits supplier

Tungsten Carbide 3 Wings Step Drag Bits/Drag Bits

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