- Hole: 130 to 175mm
- Thread type: R76
- Raw material: alloy, carbon, carbide, stainless
- Production process: casting, forging, machining, welding
- Surface treatment: antirust, electro-galvanized, spray-paint, black coating, dacromet
J.B multistep Drill Bits are popular among construction fields, which have high technology, high drilling efficiency and long grinding time. High quality materials and professional design, as well as advanced manufacturing technologies result in fast penetration, good performance and long service life.
Our drilling tools are widely used for drilling and quarrying in mining industries and other construction fields.
| No. || Products || Nominal Thread || Hole Diameter mm || Article Regular |
| 1 || Multistep Cross Bit || R76 || 130 || JBR76130MCB |
| 2 || JBR76130MCB-Jetting |
| 3 || 150 || JBR76150MCB |
| 4 || JBR76150MCB-Jetting |
| 5 || 175 || JBR76175MCB |
| 6 || JBR76175MCB-Jetting |
| Raw Material || Production Process || Surface Treatment |
| Carbon steel || Machining || Antirust |
| Alloy steel || water glass investment casting || Electro-galvanized |
| Stainless steel || Silica sol investment casting || Spray-paint |
| Carbide || Forging || Black coating |
| || Welding || Dacromet |
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Product Categories : Geotech Accessories > Multistep Cross Drill Bits