Golden 20mm to 89mm Chisel Drill Bit for Stone Rock Drilling with 7 Degree Taper and ISO9001 Certification
Professional-grade chisel drill bits designed for efficient stone and rock drilling applications. Available in diameters ranging from 20mm to 89mm, these bits feature durable carbide construction and are manufactured to ISO9001 quality standards.
- Extended service life with durable construction
- High-quality carbide materials for superior performance
- Comprehensive size selection from 20mm to 89mm diameter
- ISO9001 certified manufacturing process
- Customizable specifications including diameter, air/water holes, and carbide button configuration
- Chisel Bit: Diameter 20-51mm, Taper 7°
- Cross Bit: Diameter 32-42mm, 8×12 buttons, Taper 7°, 3 water holes
- Chisel Oblique/Long Bit: Diameter 32-42mm, 8×12 buttons, Taper 7°, 3 water holes
- Four Button Bit: Diameter 30-42mm, Taper 7°, Gauge 3×8, Front 1×8, Angle 25°, 3 water holes
- Seven Button Bit: Diameter 32mm, 51mm, Gauge 5×10, Front 2×8, Angle 35°, Taper 7°/11°/12°, 3 water holes
- Flat Face/Drop Center/Retrac Button Bit: Diameter 64mm, 76mm, 89mm, 102mm, Thread R32, R38, T38, T45, T51
Available diameters: 80, 90, 95, 100, 105, 110, 115, 120, 125, 130, 140, 150, 155, 160, 215, 220, 240, 255, 270, 305mm
| Bit Diameter (mm) | Bit Diameter (inches) | Taper | Water Holes | Part Number |
|---|---|---|---|---|
| 30 | 1 3/16" | 7° | 2 | Y130-722 |
| 32 | 1 17/64" | 7° | 2 | Y132-722 |
| 34 | 1 11/32" | 7° | 2 | Y134-722 |
| 36 | 1 27/64" | 7° | 2 | Y136-722 |
| 38 | 1 1/2" | 7° | 2 | Y138-722 |
| 40 | 1 37/64" | 7° | 2 | Y140-722 |
| 42 | 1 21/32" | 7° | 2 | Y142-722 |
| 43 | 1 11/16" | 7° | 2 | Y143-722 |
| 44 | 1 47/64" | 7° | 2 | Y144-722 |
| 46 | 1 13/16" | 7° | 2 | Y146-722 |
Ideal for use in metallurgy mining, geological exploration, water conservancy construction, electrical projects, transportation infrastructure, tunnel construction, quarry operations, and national defense stone engineering projects.
We offer custom design and manufacturing services to meet specific customer requirements including bit diameter, number of air/water holes, carbide button shape, and face shape configurations.
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