| Price | negotiation |
| MOQ | 50 |
| Delivery Time | 25 days |
| Brand | MIROC |
| Place of Origin | China |
| Certification | ISO |
| Model Number | ST58 |
| Packaging Details | Carton Box or Wooden Box |
| Payment Terms | T/T or L/C |
| Supply Ability | 20000 pieces per month |
| Place of Origin | China | Packaging Details | Carton Box or Wooden Box |
| Carbide Button shape | Spherical Button,Ballistic Button | Model Number | ST58 |
| type | threaded button drill bit | Supply Ability | 20000 pieces per month |
| Face Sharp | Drop Center/Concave/Convex/Flat Face | Certification | ISO |
| Brand Name | MIROC | Payment Terms | T/T or L/C |
| Advantage | high quality ,low price and best service | Delivery Time | 25 days |
| Price | negotiation | Button Material | tungsten carbide and Alloy steel |
| Minimum Order Quantity | 50 | Application | borehole drilling in the quarries/coal mines |
ST58 Spherical CNC Milling 4.5 Inch Rock Button Drill Bit
Description
Thread drill bits are made by high quality alloy steel bar and tungsten carbides.
Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.
In addition, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.
•
Widely
used
in
bench
and
long
hole
drilling
•
Bit
face
design
is
ideal
for
medium-hard
to
hard
abrasive
rock
Color: Green or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: ST58 Button Bit Spherical Buttons
Applications
•
Underground
mining
•
Tunneling
•
Quarry
Competitive Advantage
•
High
grade
tungsten
carbide
inserts
•
Bit
bodies
manufactured
from
high
grade
steel
and
processed
using
state-of-the-art
CNC
machinery
and
heat
treatment
Specification
| Part Number | Product Code and Brief Description | Bit Diameter (mm) | Bit Diameter (inch) | Front Buttons (No. x mm) | Gauge Buttons (No. x mm) | Angle | Front Flushing Holes | Side Flushing Holes | Weight (kg) |
| 4148300981 | R1489-ST58-S-1, ST58 Retrac Button Bit, Spherical Buttons | 89 | 3 1/2 | 6x12 | 8x14 | 35° | 2 | 1 | 5.1 |
| 4148300982 | R1389-ST58-S, ST58 Retrac Button Bit, Spherical Buttons | 89 | 3 1/2 | 4x13, 1x13 | 8x13 | 35° | 4 | - | 5.1 |
| 4148300983 | R1589-ST58-S, ST58 Retrac Button Bit, Spherical Buttons | 102 | 4 | 7x12 | 8x14 | 35° | 2 | 1 | 6.5 |
| 4148300984 | R1489-ST58-S-2, ST58 Retrac Button Bit, Spherical Buttons | 115 | 4 1/2 | 6x14 | 8x16 | 35° | 2 | - | 8.5 |
