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CoroBore® BR30

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.

View more features
​Laser-marked scale

Laser-marked scale on adaptor for increased user-friendliness when setting diameter.

Coromant Capto®

Modularity with Coromant Capto®.

Find your tool and buy

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 applications
    • CoroTurn® 107: Wide selection of grades and geometries
  • Steel
  • Stainless steel
  • Cast iron
  • Non-ferrous metals
  • Heat resistant super alloys
  • Hardened materials

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

DCN
(mm)
DCX
(mm)
Insert 90° Insert 84° Machine coupling
3540,5CC06SP06C3, C4
39,545CC06SP06C3, C4
4450,5CC06SP06C4, C5
49,556CC06; CC09SP08C4,C5
5563CC09SP08C5, C6
6270CC09; CC12SP12C5,C6
6978,5CC12SP12C5, C6
77,587CC12SP12C5,C6
8697CC12SP12C6, C8
96107CC12SP12C6,C8
106122CC12SP12; SN12C8
121137CC12SP12; SN12C8
136152CC12SP12; SN12C8
151167CC12SP12; SN12C8

Assortment is available as complete assembly kits and as separate items


CoroBore® BR30: four to eight cutting edges

DCN
(mm)
DCX
(mm)
# CE Insert 84° Machine coupling
Slides
85.0 94.5 4 SP12 C6
93.5 103.0 C6
102.0 111.5 6 C8
110.5 120.0 C8
119.0 128.5 8 C8
127.5 137.0 C8
136.0 145.5 8 C8
144.5 154.0 C8
153.0 162.5 6 C8
161.5 171.0 C8
170.0 179.5 6 C8
178.5 188.0 C8
187.0 196.5 6 C8
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

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.

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.

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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