T38 76mm Spherical Button Tungsten Carbide Button Drill Bit
Button bit is well known for its high wear resistance on
medium-hard to hard abrasive rock formations (between 200 Mpa to
260 Mpa compressive strength).Featuring spherical tungsten carbide inserts that is known to have
strong configuration against carbide fracture.
• Recommended for eliminating hole deviation
• Widely used drifting and tunneling
• Bit face design is ideal for medium-hard to hard abrasive rock
• Color: Green,Blue or Based on Customer requirements
| Product Name: | different rock hardness drilling button bit |
| Description: | For different rock hardness mining,tunneling,quarrying button bit Button bit Made with high quality of best quality alloy steel bar
and tungsten carbide, through heat treatment. |
| Material: | Alloy steel bar and tungsten carbide bit |
| MOQ: | trial order 1-5pcs |
| Body Type | Normal type and retract type |
| Thread type | R25,R28,R32,R38,T38,T45,T51,ST58,ST68 |
| Diameter | 32mm-152mm |
| Button bit shape | Spherical and Ballistic |
| Face shape | Flat shape and Drop-center shape |
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
Applications of rock drilling tools
• Underground mining
• Tunneling,quarrying
Quick detail of retract button bit:
• Widely used drifting and tunneling
• Bit face design is ideal for soft to medium rock formations
• With retrac wings to help guide the bit in and out of the hole
• Effective in straight hole drilling
T38 Thread Button Bit Specification
Diameter | Buttons and Size (mm) | Flushing hole | Weight | Part Number |
mm | inch | Front | Gauge | Angle | Front | Side | kg |
Spherical |
64 | 2 1/2 | 3×11 | 6×12 | 35° | 3 | - | 1.8 | 4148300705 |
64 | 2 1/2 | 4×10 | 8×10 | 40° | 2 | - | 1.6 | 4148300706 |
64 | 2 1/2 | 3×10, 1×10 | 6×11 | 35° | 3 | - | 1.7 | 4148300707 |
70 | 2 3/4 | 4×11 | 8×11 | 40° | 2 | - | 1.9 | 4148300708 |
70 | 2 3/4 | 4×10, 1×10 | 8×11 | 30° | 4 | - | 1.9 | 4148300709 |
70 | 2 3/4 | 3×10, 1×10 | 6×12 | 35° | 3 | - | 1.8 | 4148300710 |
76 | 3 | 4×11 | 8×11 | 40° | 2 | - | 2.4 | 4148300711 |
76 | 3 | 5×11 | 8×13 | 35° | 2 | 1 | 2.4 | 4148300712 |
76 | 3 | 3×11, 1×11 | 6×12 | 35° | 3 | 1 | 2.6 | 4148300713 |
76 | 3 | 4×11, 1×11 | 8×12 | 35° | 4 | - | 2.6 | 4148300714 |
76 | 3 | 4×11, 1×11 | 8×11 | 40° | 4 | - | 2.6 | 4148300715 |
89 | 3 1/2 | 4×13 | 8×13 | 40° | 2 | - | 3.3 | 4148300716 |
89 | 3 1/2 | 5×13 | 8×13 | 35° | 2 | - | 3.3 | 4148300717 |
89 | 3 1/2 | 6×11 | 8×12 | 35° | 2 | - | 3.3 | 4148300718 |
89 | 3 1/2 | 3×11, 2×11 | 6×13 | 35° | 3 | 1 | 3.3 | 4148300719 |
89 | 3 1/2 | 4×11, 1×11 | 8×13 | 35° | 4 | - | 3.3 | 4148300720 |
89 | 3 1/2 | 4×13, 1×13 | 8×13 | 35° | 4 | - | 3.3 | 4148300721 |
