| Customization: | Available |
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| Type: | Drill Bit |
| Material: | Tungsten Carbide |
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R17-28 Cross bit, in coal mine support operations, R17-28mm drill bits are mainly used for anchor drilling, and must meet the requirements of high strength, wear resistance, and adaptability to hard rock formations.
1. Applicable drill bit type
(1). Cross Bit
Diameter range: 17-28mm (R17-28mm)
Features: Four-blade symmetrical design, high rock breaking efficiency, suitable for medium-hard rock formations (such as sandstone and shale).
Material: Alloy steel (such as 42CrMo) with carbide teeth (YG8/YG11C).
2. Precautions for use
1. Matching the drill rig: Make sure the drill bit connection method (thread/cone) is compatible with the drill tail of the drill rig.
2. Rock formation adaptation:
Soft rock: Use a cross drill bit to increase the drilling speed.
Hard rock: Prefer a ball-tooth drill bit to reduce wear.
3. Cooling and slag removal:
Use high-pressure air or water mist cooling to avoid overheating of the drill bit.
Clean the rock powder in the hole regularly to prevent the drill from getting stuck.
4. Life management:
A single grinding can extend the life by 30%, but the number of grindings is ≤3 times.
Replace it in time when it is severely worn to avoid drilling deviation.
| Product Name: | Thread Button bits |
| Description: | Thread Button bit s Button bit Made with high quality of best quality alloy steel bar and tungsten carbide, through heat treatment like Atlas. |
| Material: | Alloy steel bar and tungsten carbide bit |
| MOQ: | No MOQ required for testing and trial order |
| Body Type | Normal type and retract type |
| Thread type | R22,R25,R28,R32,R38,T38,T45,T51,ST58,ST68,GT60 |
| Diameter | 32mm-152mm |
| Button bit shape | Spherical and Ballistic |
| Face shape | Flat shape and Drop- C enter shape |
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