3 inches DTH DHD3.5 90mm drilling bit for down the hole and water
well drilling
DTH Drill Bit
DTH bit is the tool cutting rocks, and subject to severe stress
from the striking piston as well as from the abrasive cuttings
passing the bit at high velocity. When selecting the right bit for
optimum performance you have to balance penetration against bit
life. On occasion you can successfully sacrifice bit life for
penetration, remember the rule of thumb that states that a 10%
increase in penetration covers at least a 20% loss in bit life.
We can design and manufacture the personalized products to meet
your specical apllication, such as changing the tungsten carbide
insert profile (spherical, ballistic, etc.), face profile (flat
face, concave, convex, etc.), and flushing holes.
Hammer size: 2”~3.5” 4”~8” 10”~32”
Hammer Shank Style: BR, AHD, Cop, Mission...
Mincon, Numa, QL, TD...
SD, DHD, XL, ACD, Mach...
Face Design: Flat, Concave, Convex
DHD3.5 DTH Drill Bit Specification
| DHD3.5 |
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| Ballistic Convex Face |
Bit Diameter
(mm) | Bit Diameter
(inch) | Buttons
(mm) | Flushing holes | Weight
(kg) | Part number |
| Front | Gauge |
| 90 | 3 1/2 | 4*12,2*12 | 8*12 | 2 | 4.5 | 4148301219 |
| 95 | 3 3/4 | 4*12,2*12 | 8*12 | 2 | 4.8 | 4148301220 |
| 100 | 3 7/8 | 4*13,2*13 | 8*13 | 2 | 5 | 4148301221 |
| 105 | 4 1/8 | 4*14,2*14 | 8*14 | 2 | 5.5 | 4148301222 |
| DHD3.5 |
 |
|
|
|
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| Spherical Flat Face |
Bit Diameter
(mm) | Bit Diameter
(inch) | Buttons
(mm) | Flushing holes | Weight
(kg) | Part number |
| Front | Gauge |
| 90 | 3 1/2 | 6*12 | 8*12 | 2 | 4.5 | 4148301223 |
| 95 | 3 3/4 | 6*12 | 8*12 | 2 | 4.8 | 4148301224 |
| 100 | 3 7/8 | 6*13 | 8*13 | 2 | 5 | 4148301225 |
| 105 | 4 1/8 | 6*14 | 8*14 | 2 | 5.5 | 4148301226 |
Button bit and Insert types
Spherical Button Characteristics:
1. Universal button
2. Good wear resistance
3. Best suited for hard ground
4. 27000-48000PSI(180 to 320Mpa)
5. Suited for abrasive to very abrasive drilling conditions
Ballistic Button Characteristics:
1. Fast Penetration
2. Best suited for soft rock
3. 10000-20000PSI(70 to 140Mpa)
4. Suited for non-abrasive drilling conditions
Conical Button Characteristics:
1. Fast Penetration
2. Best suited for smaller diameter bits
3.Suited for non-abrasive drilling conditions
About US
KSQ Technologies (Beijing) Co. Ltd. is a diversified enterprise
based in Beijing, China, offering a portfolio of products that help
contribute to a better bottom line and increase workplace safety
for the construction and mining industries.
KSQ Technologies (Beijing) Co. Ltd. has significant experience and
know-how in the supply of materials, components, finished goods,
specially designed/engineered equipment, and services from China.
The company caters to medium to large scale clients who are doing
projects and capital expansion, as well as to firms who require
support with consumable products, maintenance, and repair
operations. Our operations are based on the unique expertise of our
people and knowledge with customer processes.
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
