CoroBore® BR30
Three-edge rough boring tools for maximum productivity
Differential pitch
The differential pitch reduces vibration tendencies so that the tools can be used at longer overhangs and larger depth of cuts.
Highly-productive boring
Three cutting edges for superior productivity. The short and rigid tool assembly provides high stability and rigidity.
Step boring functionality
Additional shims available for step boring with CoroBore® BR30.
Application area
- Rough boring
- Multi-edge boring, step boring
- Standard inserts with optimized grades and geometries for all materials CoroBore® 111: Optimized for rough boring applicationsCoroTurn® 107: Wide selection of grades and geometries
Product range
Multi-edge boring
Very productive multi-edge tool, available from three to eight cutting edges, for maximum metal removal rate. Short and rigid tool assembly provides high stability and rigidity.
CoroBore® 111 inserts
Four-edged standard inserts with optimized grade selection. The unique solution offers excellent chip breaking and increased lifetime in ISO P, M, K and S materials.
CoroBore® BR30: three cutting edges
| Size | DCN(mm) | DCX(mm) | Insert 90° | Insert 84° | Machine coupling |
| A | 35 | 40.5 | CC06 | SP06 | C3, C4 |
| 39.5 | 45 | CC06 | SP06 | C3, C4 | |
| B | 44 | 50.5 | CC06 | SP06 | C4, C5 |
| 49.5 | 56 | CC06, CC09 | SP08 | C4, C5 | |
| C | 55 | 63 | CC09 | SP08 | C5, C6 |
| 62 | 70 | CC09, CC12 | SP12 | C5, C6 | |
| D | 69 | 78.5 | CC12 | SP12 | C5, C6 |
| 77.5 | 87 | CC12 | SP12 | C5, C6 | |
| E | 86 | 97 | CC12 | SP12 | C6, C8 |
| 96 | 107 | CC12 | SP12 | C6, C8 | |
| F | 106 | 122 | CC12 | SP12, SN12 | C8 |
| 121 | 137 | CC12 | SP12, SN12 | C8 | |
| G | 136 | 152 | CC12 | SP12, SN12 | C8 |
| 151 | 167 | CC12 | SP12, SN12 | C8 | |
| H | 167 | 191 | CC12, CN16 | SP12, SN15 | C8 |
| 189 | 214 | CC12, CN16 | SP12, SN15 | C8 |
Assortment is available as complete assembly kits and as separate items
CoroBore® BR30: four to eight cutting edges
| Size | DCN (mm) | DCX (mm) | # CE | Insert 84° | Machine coupling |
| Slides | |||||
| D | 85.0 | 94.5 | 4 | SP12 | C6 |
| D | 93.5 | 103.0 | C6 | ||
| D | 102.0 | 111.5 | 6 | C8 | |
| D | 110.5 | 120.0 | C8 | ||
| D | 119.0 | 128.5 | 8 | C8 | |
| D | 127.5 | 137.0 | C8 | ||
| D | 136.0 | 145.5 | 8 | C8 | |
| D | 144.5 | 154.0 | C8 | ||
| D | 153.0 | 162.5 | 6 | C8 | |
| D | 161.5 | 171.0 | C8 | ||
| D | 170.0 | 179.5 | 6 | C8 | |
| D | 178.5 | 188.0 | C8 | ||
| D | 187.0 | 196.5 | 6 | C8 | |
| D | 195.5 | 205.0 | C8 |
CoroBore® 111 rough boring inserts for CoroBore® BR30
| Insert type/size | Entering angle | IC | Geometry | Grade |
SPMT 06 06 - Bx SPMT 09 08 - Bx SPMT 12 12 - Bx | 84° | 6, 8, 12 | BR,BM | P 4325 M 2025 K 3210 S 1145 |
Click here to go to CoroBore® 111 insert assortment
Positioning of rough boring tools
| Tool | Solution | Technical features | |||||||||
| Differential pitch | CoroBore® 111inserts | High Precision Coolant | Flexible diameter range | Back boring | Laser-marked scale on adaptor | Long overhang | Stepboring | Modular Coromant Capto® | Coromant EH | ||
| CoroBore® BR10 | Back boring | ✔ | ✔ | ✔ | ✔ | ||||||
| CoroBore® BR20 | Flexible boring tools | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | |
| CoroBore® BR20 Silent Tools™ | Boring with long overhang | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔* | ✔ | ✔ | |
| CoroBore® BR30 | High metal removal rate (3 to 8 cutting edges) | ✔ | ✔ | ✔ | ✔ | ✔ |
*Step boring possible with kappa 90°
Highlights
Back boring with CoroBore® BR10
The CoroBore® BR10 back boring tool is based on the CoroBore® BR20 adaptor together with a unique back boring slide and cover.
CoroBore® BR20 twin-edge boring tool for flexible boring
CoroBore® BR20 is a twin-edge multi-purpose tool for rough boring. The system consists of adaptors with matching slides, shims and covers, making it possible to adapt the tool to various materials and conditions.
Next generation rough boring tools
The new generation of CoroBore® rough boring tools provides you high-end productivity in all your rough boring operations.
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Sandvik Coromant UK
+44 (0)121 368 0305