Factory Supply Rock Drill Bits R28 46mm Rock Hammer Drill Bis for
Rock Drilling
Product Description:
Scientific and standard thread tooth design is the basis of
top-hammer rock drilling tools’ high quality thread connection,
strictly control precision thread process is the only way to
guarantee the excellent performance of thread connection.
Inaccurate thread connection with large or small gap will lead to
high frequency vibration and shaking during drilling, caused thread
high temperature and broken.
Thread Strengthen:
In order to obtain better service life and performance, KSQ does a
significant treatment for thread part, enhance thread strength and
improve abrasive resistance. The most important thing is the
proportion of broken rod dropped significantly.
Heat Treatment:
Heat treatment with Fully Carburization, Air Cool Quenching,
Tempering keeps products high toughness, air cool quenching
significantly improve its surface hardness and whole strength
index. It improves the whole working life and durability of rock
drilling tools such as shank adaptors, extension drill steels, MF
rods, hex drifting drill rods etc.
Products Parameters:
| Product Name: | Thread Button Drill Bit |
| Diameter: | 46mm |
| Button Size: | Front 4*13,2*13mm Gauge 8*13mm |
| Thread: | R28 |
| Flushing Hole: | 2 Front and 1 Side |
| Application: | Button drill bits are used in granite and marble quarry, gold mine,
railway, tunnel, etc. for drilling |
| Weight: | 0.9 kg |
| Button Type: | Ballistic |
| Body Type: | Normal |
| Face Type: | Flat |
| Material: | Alloy steel bar 45CrNiMoV and tungsten carbide tips YK05 |
| MOQ: | No requirement for testing and trial order |
We can design and manufature according to your requirment of
diameter, number air holes and carbide button shape |
Product Advantage:
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
Specification of other Retrac Button Bits:
| Skirt Shape | Straight (Normal) | Retract | Straightrac |
| Bit Diameter | 35~152mm | 45~127mm | 64~102mm |
| (1 3/8 ~ 6”) | (1 25/32” ~ 5”) | (2 1/2” ~ 4”) |
| Thread | R22, R25, R28, R32, R35, R38, T38, T45, T51, T60, ST58, ST68. | R25, R28, R32, R35, R38, T38, T45, T51, T60, ST58, ST68. | R38, T38, T45, T51, T60, ST58, ST68. |
| Face Design | Flat, Convex or Drop Center; | Flat, Convex or Drop Center; | Flat, Convex or Drop Center; |
| Inserts Configuration | Domed (Spherical), Hemi-spherical, Ballistic, Parabolic or Conical; | Domed (Spherical), Hemi-spherical, Ballistic, Parabolic or Conical; | Domed (Spherical), Hemi-spherical, Ballistic, Parabolic or Conical; |
