Product name: T51 diameter 102mm normal thread DTH button drill bit
Product category: DTH thread button drill bit
Matched connection: T51
Diameter: 102mm
other diameter: 89mm, 102mm, 115mm, 127mm, 140mm
Skirt body: retrac, and normal,
Face: flat, concave
Carbide: spherical, ballistic,semiballistic
Used: in drifting and tunneling, dimensional natural stone
quarrying
Matched: shank rod, and MM and MF Hex drifter rod
KINGDRILLING DTH thread button bit description:
In Top Hammer Drilling the hammer produces a percussive force on
the drill rods or tubes, which is transmitted to the drill bit. The
feed device is usually attached with a hinged boom to a mobile
unit.
They are most used in drifting and tunneling, dimensional natural
stone quarrying
KINGDRILLING DTH thread button bit technical parameters:
| T51 System DTH thread button bit |
|
| Bits | Diameter | Buttons.mm | Angle | Flushing hole |
| mm | in | Front No Size | Gauge NO Size | Front | Gauge |
| Button bit,Flat face |
 |  | 89 | 3 1/2" | 5x12 | 8x 12 | 35° | 2 | 2 |
| 89 | 3 1/2" | 6x 12 | 8x 12 | 35° | 2 | 2 |
| 102 | 4" | 4x 14 | 8x 14 | 35° | 2 | 2 |
 | 89 | 3 1/2" | 5x 12 | 8x 12 | 35° | 2 | 2 |
| 102 | 4" | 6x 14 | 8x 14 | 35° | 2 | 1 |
| 115 | 4 1/2" | 6x 14 | 8x 14 | 35° | 2 | 1 |
 | 89 | 3 1/2" | 2x 10 | 8x 12 | 35° | 4 | - |
| 4x 12 |
| 89 | 3 1/2" | 5x 12 | 8x 12 | 35° | 4 | - |
| 102 | 4" | 6x 12 | 8x 13 | 35° | 4 | - |
| 102 | 4" | 6x 12 | 8x 14 | 35° | 4 | - |
| 115 | 4 1/2" | 6x 14 | 8x 14 | 35° | 4 | - |
| 115 | 4 1/2" | 6x 13 | 8x 14 | 35° | 4 | - |
| 127 | 5" | 7x 14 | 8x 14 | 35° | 4 | - |
| 140 | 5 1/2" | 7x 16 | 8x 16 | 35° | 4 | - |
| 152 | 6" | 8x 16 | 8x 16 | 35° | 4 | - |
 | 89 | 3 1/2" | 5x12 | 8x 12 | 35° | 2 | 2 |
| 89 | 3 1/2" | 6x 12 | 8x 12 | 35° | 2 | 2 |
| 102 | 4" | 6x 14 | 8x 14 | 35° | 2 | 2 |
 | 89 | 3 1/2" | 5x12 | 8x 12 | 35° | 2 | 2 |
| 102 | 4" | 6x 13 | 8x 14 | 35° | 2 | 1 |
| 115 | 4 1/2" | 6x 13 | 8x 14 | 35° | 2 | 1 |
 | 89 | 3 1/2" | 6x12 | 9x 12 | 35° | 3 | - |
| 102 | 4" | 7x 12 | 9x 12 | 35° | 3 | - |
| 102 | 4" | 7x 12 | 9x 13 | 35° | 3 | - |
| 115 | 4 1/2" | 7x 13 | 9x 13 | 35° | 3 | - |
| 115 | 4 1/2" | 6x 14 | 9x 14 | 35° | 3 | - |
| 127 | 5" | 8x 14 | 9x 14 | 35° | 3 | - |
| 140 | 5 1/2" | 10x 14 | 9x 16 | 35° | 3 | - |
| Button bit,Retrac,Drop center |
 | 89 | 3 1/2" | 2x 10 | 8x 12 | 35° | 4 | - |
| 4x 12 |
| 89 | 3 1/2" | 5x12 | 8x 12 | 35° | 4 | - |
| 102 | 4" | 6x 12 | 8x 13 | 35° | 4 | - |
| 102 | 4" | 6x 12 | 8x 14 | 35° | 4 | - |
| 115 | 4 1/2" | 6x 14 | 8x 14 | 35° | 4 | - |
| 115 | 4 1/2" | 6x 13 | 8x 14 | 35° | 4 | - |
| 127 | 5" | 7x 14 | 8x 16 | 35° | 4 | - |
| 140 | 5 1/2"6" | 7x 16 | 8x 16 | 35° | 4 | - |
| 152 | 6" | 8x 16 | 8x 16 | 35° | 4 | - |
Order Guide: Order Guide: Diameter + Thread + Skirt Shape + Face
Design + Insert Shape
Top hammer drilling feature
1. The most suitable for hole diameter between 25–127 mm.
2. Generally, the hole depth is less than 25 meters.
3. Adapt to a stable and uniform hard rock.
4. The slag flushing medium is compressed air or water.
5. High efficiency in shallow holes drilling, the deeper the lower
efficiency.
6. Most easily to skew in these three drilling methods.
Kingdrilling rock drill tools application:
1. Mining and quarrying drilling
2. Mining exploration drilling
3. Piling and foundation drilling
4. Water well drilling
5. Geothermal drilling
6. Horizontal directional drilling
FAQ:
1. What is top hammer drilling?
In top hammer drilling, the activity is concentrated at the top of
the drill string, above the hole, as a hammer transmits cyclical
shock waves to the drill bit by applying a percussive force on the
drill rods or tubes (With DTH drills, the hammer is placed
down-the-hole at the bit.
2. Is top hammer drilling vs down-the-hole drilling?
The primary difference between the top hammer and down-the-hole
drilling methods is where the hammer is attached. The hammer in the
industrial equipment makes contact with the bit during the
down-the-hole drilling method. The top hammer drilling method's
activity is concentrated at the very top of the drill string.
3. How does the Top Hammer Drilling work?
The percussive force of the top hammer drilling produced by the
piston of the pump in the hydraulic drilling rig, it is transmitted
to the drill bit via shank adaptor and drill pipe, This is the
difference between DTH drilling. Meanwhile, the percussion system
drives the drilling system rotation. When the stress wave reaches
the drill bit, the energy is transmitted to the rock in the form of
bit penetration. The combination of these functions enables
drilling holes into the hard rock, and the air compressor only
performs dust removal and slagging in top hammer drilling.
The combination of these functions enables drilling holes into the
hard rock, and the air compressor only performs dust removal and
slagging in top hammer drilling.
Impact energy multiplied by impact frequency together creates the
percussive output of the drifter. However, usually, top hammer
drilling used for hole diameter maximum 127mm, and hole depth less
than 20M, which in high efficiency.
4. What is DTH in mining?
Down-the-hole drilling (DTH) essentially involves a drilling hammer
at the bottom of a drill string. It relies on three elements for
drilling holes: bit loading (weight), rotation and air. These
active elements combine to be efficient at crushing rock.
More information:
