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DHD350 DTH Bit with 5 Inch Hammer

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DTH bits are made of superior quality alloy steel ( 45CrNiMoV ) which is made by Timken in U.S. Besides, all our DTH bits are using the brand "Element Six" or "YK05" T.C carbide which provides (the T.C buttons) for Boart Longyear. In addition art manufacturing technology makes our DTH bits with higher and more reliable quality. Also , KingKong Drills has a comprehensive range of DTH drill bits to match all conceivable applications .

  • DHD350
  • Bart KingKong
  • DHD350-146
  • DHD350 DTH Bit
  • 5inch DTH bit
  • flat, uniface, drop center
  • Dia. 140mm, 146mm, 152mm
  • water well industries, stone quarrying, mining and construction
  • superior quality
Diameter: :
Gauge Buttons::
Front Buttons: :
Carbide Design: :
Face Design: :

In DTH drilling, drill rods and bits are the most important parts of the drilling process. When working, the drill rods transmit the necessary feed force and rotation to hammer and bit plus compressed air or fluids for the hammer and flushing of cuttings, the hammer is located between the drill rod and bit. As the hole gets deeper, the length of drill rod must be increased, so one and one drill rods are needed to increase the total length of the drill rods.

Hammer model: DHD350

Diameter: 140mm, 146mm, 152mm

Button bit shape: spherical and ballistic

Face shape: Flat shape and drop-center shape


advantage of DTH drill bit 

1.Material: superior quality alloy steel which is made by Timken in U.S. 

2.Tungsten carbide: "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear.

3.higher and more reliable quality owing to the high-tech equipment and production technology.


DHD series dth button bit specification:

Shank style

Diameter in mm

Flat face

Convex face

Concave face

Approx. weight

Part number

DHD3.5

85


5.0 kgs

DHD3.5-85

90


5.8 kgs

DHD3.5-90

95


5.9 kgs

DHD3.5-95

100

6.1 kgs

DHD3.5-100

105

6.3 kgs

DHD3.5-105

DHD340

105

8.6 kgs

DHD340 -105

110

8.8 kgs

DHD340-110

115

9.0 kgs

DHD340-115

120

9.5 kgs

DHD340-120

127

9.9 kgs

DHD340-127

DHD350

135

16.2 kgs

DHD350-135

140

16.5 kgs

DHD350-140

146

17.0 kgs

DHD350-146

152

17.8 kgs

DHD350-152

165

18.5 kgs

DHD350-165

DHD360

152

23.3kgs

DHD360-152

165

25.2 kgs

DHD360-165

171

25.8 kgs

DHD360-171

190

28.5 kgs

DHD360-190

203

29.5 kgs

DHD360-203

DHD380

203


48.1 kgs

DHD380-203

216


52.0 kgs

DHD380-216

241


58.7kgs

DHD380-241

254


60.4 kgs

DHD380-254

292


80.1 kgs

DHD380-292


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Down the hole bits are widely used in different drilling applications including mining,quarrying, water well drilling, geotechnical industries and etc.

DTH bit application

How to order?

Shank Type + Diameter + Face Design + Button Configuration


Contact me

Amy Zhang

Email: amy@kingkongdrills.com

Mobile: +86 13907256175 (Wechat/Whatsapp/Skype) 


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P.R.China 450000
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