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146mm DHD350 DTH bit for 5'' hammer

  • 1-19 Pieces
  • >=20 Pieces
Model Number:
DHD350 DTH bit
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0piecesselected, US $in total
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Shipping fee:
Depends on the order quantity.
Lead Time:
25 day(s) after payment received
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Quick Details
Applicable Industries:
Construction works , Energy & Mining
Local Service Location:
Showroom Location:
Video outgoing-inspection:
Machinery Test Report:
Marketing Type:
Hot Product 2019
Place of Origin:
Guizhou, China
Brand Name:
Machine Type:
Drilling Equipment
Carbon Steel
Processing Type:
Ore Mining
Product name:
146mm DHD350 DTH bit
mining,quarry,water well drilling
down the hole drilling
Orange or white,black,blue
Face disign:
flat face, convex, concave
Button shape:
button number and size:
8*17mm+ 8*14mm
Rock formation:
hard rock

Packaging & Delivery

Selling Units:
Single item
Single package size: 
30X30X30 cm
Single gross weight:
30.000 kg
Package Type:
146mm DHD350 DTH bit packaged in cardboard and plywood case.
Lead Time :
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 25 To be negotiated


146mm DHD350 DTH bit for 5'' hammer


Product Description


 DTH  drill bit advantage

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.



The DTH bit is the tool cutting rock. Sinodrills DTH bit is made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bit is using the brand "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear. In addition art manufacturing technology makes our DTH bit is with higher and more reliable quality.

Different face style makes DTH bit is suitable for various rock conditions.

Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.


Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.


Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.




DTH bits face and button selection





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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