12 Degrees Tapered Tungsten Drill Bits Diameter 38mm For Rock
Drilling
Taper button bit is the most popular tapered rock drill bits with a
wide selection of head diameters from 26mm to 48mm. With carbide
buttons hot pressed on the bit skirts, taper button bit has a good
drilling performance and are excellent in longevity.
We manufactuer various tapered rock drill bits in different degrees
as below:
Bit diameter: 32mm ~ 48mm;
Tapered degree: 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Buttons configuration: 4 buttons, 5 buttons, 6 buttons, 7 buttons,
8 buttons, 9 buttons;
Application:
The taper drill bit is widely used in metallurgy mine, geological
exploration, water conservancy construction, electricity, traffic,
tunnel, quarry, national defence stone project etc.
Product Feature:
We can design and manufacture according to customers' samples or
drawings of the Bit Dia., No. of air / water holes, carbide button
shape and the face shape.
Our button bit is made with high quality of best quality alloy
steel bar and tungsten carbides, through heat treatment so that it
can withstand the toughest rock drilling demands, and transmit
intensive impact energy into the rock with the least possible loss
of energy.
Comparing with tapered chisel bits and tapered cross bits, button
bits has higher technology, much longer primary drilling time and higher
drilling efficiency.
According to the tungsten carbide insert, tapered button bits can be divided into the types of hemispherical, conical andparabolic button, etc.
Specification
apered Rock Drilling Tools - 12° Button bit, Short skirt
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | Part Number |
| mm | inch | Front | Gauge | Angle | Front | Side | kg |
| 28 | 1 1/9 | 1x7 | 3x7 | 20° | 1 | 1 | 0.2 | 4148300255 |
| 28 | 1 1/9 | 1x7 | 4x7 | 35° | 1 | 1 | 0.2 | 4148300256 |
| 29 | 1 1/7 | 1x7 | 3x7 | 40° | 1 | 1 | 0.21 | 4148300257 |
| 30 | 1 1/6 | 1x7 | 3x7 | 40° | 1 | 1 | 0.22 | 4148300258 |
| 30 | 1 1/6 | 1x7 | 4x7 | 35° | 1 | 1 | 0.22 | 4148300259 |
| 30 | 1 1/6 | 2x7 | 4x7 | 30° | 1 | 1 | 0.22 | 4148300260 |
| 32 | 1 1/4 | 2x7 | 5x7 | 40° | 2 | 1 | 0.24 | 4148300261 |
| 33 | 1 2/7 | 2x7 | 5x7 | 35° | 1 | 1 | 0.25 | 4148300262 |
| 34 | 1 1/3 | 2x7 | 5x8 | 35° | 1 | 1 | 0.29 | 4148300263 |
| 35 | 1 3/8 | 2x7 | 4x7 | 35° | 1 | 1 | 0.33 | 4148300264 |
| 35 | 1 3/8 | 2x7 | 5x8 | 35° | 2 | 1 | 0.33 | 4148300265 |
| 35 | 1 3/8 | 2x7 | 5x9 | 35° | 1 | 1 | 0.33 | 4148300266 |
| 36 | 1 3/7 | 2x7 | 5x9 | 35° | 1 | 1 | 0.37 | 4148300267 |
| 37 | 1 1/2 | 2x7 | 5x9 | 40° | 1 | 1 | 0.38 | 4148300268 |
| 38 | 1 1/2 | 1x9 | 5x9 | 40° | 1 | 1 | 0.4 | 4148300269 |
| 38 | 1 1/2 | 2x7 | 5x9 | 35° | 1 | 1 | 0.4 | 4148300270
|
Long skirt
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | Part Number |
| mm | inch | Front | Gauge | Angle | Front | Side | kg |
| 28 | 1 1/9 | 1x7 | 3x7 | 20° | 1 | 1 | 0.2 | 4148300255 |
| 28 | 1 1/9 | 1x7 | 4x7 | 35° | 1 | 1 | 0.2 | 4148300256 |
| 29 | 1 1/7 | 1x7 | 3x7 | 40° | 1 | 1 | 0.21 | 4148300257 |
| 30 | 1 1/6 | 1x7 | 3x7 | 40° | 1 | 1 | 0.22 | 4148300258 |
| 30 | 1 1/6 | 1x7 | 4x7 | 35° | 1 | 1 | 0.22 | 4148300259 |
| 30 | 1 1/6 | 2x7 | 4x7 | 30° | 1 | 1 | 0.22 | 4148300260 |
| 32 | 1 1/4 | 2x7 | 5x7 | 40° | 2 | 1 | 0.24 | 4148300261 |
| 33 | 1 2/7 | 2x7 | 5x7 | 35° | 1 | 1 | 0.25 | 4148300262 |
| 34 | 1 1/3 | 2x7 | 5x8 | 35° | 1 | 1 | 0.29 | 4148300263 |
| 35 | 1 3/8 | 2x7 | 4x7 | 35° | 1 | 1 | 0.33 | 4148300264 |
| 35 | 1 3/8 | 2x7 | 5x8 | 35° | 2 | 1 | 0.33 | 4148300265 |
| 35 | 1 3/8 | 2x7 | 5x9 | 35° | 1 | 1 | 0.33 | 4148300266 |
| 36 | 1 3/7 | 2x7 | 5x9 | 35° | 1 | 1 | 0.37 | 4148300267 |
| 37 | 1 1/2 | 2x7 | 5x9 | 40° | 1 | 1 | 0.38 | 4148300268 |
| 38 | 1 1/2 | 1x9 | 5x9 | 40° | 1 | 1 | 0.4 | 4148300269 |
| 38 | 1 1/2 | 2x7 | 5x9 | 35° | 1 | 1 | 0.4 | 4148300270 |
About us
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ
Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical
know-how in development, production, and application. The company
has adopted advanced manufacturing processes to ensure high quality
steels and tungsten carbide inserts for its rock drilling
accessories. Its personnel understand clients’ drilling needs, and
have the service skills to recommend the right drilling tools for
the job. Its experienced product developers can also create custom
tools. Furthermore, the company’s development team introduces
innovative products each year – tools that are rigorously tested in
the field and proven
to perform beyond industry expectations.
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
