MBX Fine Boring Units
Rigibore MBX boring units are precision units for mounting into standard or special boring tools.
These units are pre-tensioned, to eliminate backlash and allow adjustments only to be made from the front of the unit.
Each graduation on the adjustment is 0.005mm on radius.
Each vernier graduation on the bush is 0.001mm on radius.
Square Mounted Units
| D
Min Bore |
Radial
Adjustment |
DM | F | L1 | L2 | Insert | Part Number |
| 27 | 2.5 | 16 | 5.10 | 13.2 | 25.1 | CC_ _060204 | MBX1-590C06
MBX1-590C06-LH |
| 36.5 | 3.5 | 20 | 6.30 | 18.01 | 36.5 | TC_ _090204 | MBX2-590T09
MBX2-590T09-LH |
| 48.5 | 6.0 | 22 | 7.20 | 21.8 | 48.5 | TC_ _10204 | MBX3-590T11
MBX3-590T11-LH |
| 68.4 | 10.0 | 32 | 10.3 | 31.42 | 68.4 | TC_ _16T308 | MBX4-590T16
MBX4-590T11-LH |
Angular Mounted Units
| D
Min Bore |
Radial
Adjustment |
DM | F | L1 | L2 | Insert | Part Number |
| 25.3 | 2.0 | 16 | 0.4 | 14.08 | 26.0 | CC_ _060204 | MBX1-290C06
MBX1-290C06-LH |
| 24.8 | 2.0 | 16 | 0.25 | 14.11 | 26.0 | TC_ _06T102 | MBX1-290T06
MBX1-290T06-LH |
| 32.5 | 2.8 | 20 | 1.0 | 18.7 | 34.2 | TC_ _090204 | MBX2-290T09
MBX2-290T09-LH |
| 42.0 | 4.8 | 22 | 1.2 | 22.6 | 46.8 | TC_ _110204 | MBX3-290T11
MBX3-290T11-LH |
| 59.4 | 8.0 | 32 | 1.4 | 32.51 | 66.6 | TC_ _16T308 | MBX4-290T16
MBX4-290T11-LH |
Rigibore Easy Specials
Spares & Accessories
| Unit Size | Insert | Retaining Screw & Wrench Kit | Adjusting Spanner | Torx Wrench | Torx Driver |
| MBX 1 | CC_ _0602 | BTR001/10/3 | MBS 2160 | R37 | R37D |
| MBX 1 | TC_ _06T1 | BTR001/10/3 | MBS 2160 | R27 | R27D |
| MBX 2 | TC_ _0902 | BTR001/10/3 | MBS 2161 | R37 | R37D |
| MBX 3 | TC_ _1102 | BTR001/7/3 | MBS 2162 | R37 | R37D |
| MBX 4 | TC_ _16T3 | BTR001/8/3 | MBS 2163 | R77 | R77D |
Mounting Dimensions
|
Angular Mounted Unit – 290 |
||||||
| MBX Unit Size | Insert Style | d1 H7 | d11
+.02/0 |
d12
+.01/0 |
d13 | |
| 1 | 06 | 16 | 19 | 4.6 | 3.25 | |
| 2 | 09 | 20 | 25 | 4.6 | 3.2 | |
| 3 | 11 | 22 | 30 | 6.5 | 4.3 | |
| 4 | 16 | 32 | 46 | 11.9 | 54 | |
| MBX Unit Size | h11
+.02/0 |
h12
+/- 0.05 |
h13 | l th | r hc | Tap |
| 1 | 11.5 | 2.8 | 1.6 | 9 | 9.65 +/-0.02 | M3 |
| 2 | 15.5 | 4 | 1.6 | 9 | 12.5 +/- 0.05 | M3 |
| 3 | 24 | 5 | 1.8 | 13 | 15.4 +/- 0.05 | M4 |
| 4 | 33 | 6.3 | – | 16 | 23.0 +/- 0.05 | M5 |
|
Square Mounted Unit – 590 |
||||||
| MBX Unit Size | Insert Style | d1 H7 | d21
+.02/0 |
d22
+.01/0 |
d23 | |
| 1 | 06 | 16 | 19 | 4.6 | 3.25 | |
| 2 | 09 | 20 | 25 | 4.6 | 3.2 | |
| 3 | 11 | 22 | 30 | 6.5 | 4.3 | |
| 4 | 16 | 32 | 46 | 11.9 | 54 | |
| MBX Unit Size | h21
+.02/0 |
h22
+/- 0.05 |
h23 | l th | r hc | Tap |
| 1 | 11.5 | 2.8 | 1.6 | 9 | 9.65 +/-0.02 | M3 |
| 2 | 15.5 | 4 | 1.6 | 9 | 12.5 +/- 0.05 | M3 |
| 3 | 24 | 5 | 1.8 | 13 | 15.4 +/- 0.05 | M4 |
| 4 | 33 | 6.3 | – | 16 | 23.0 +/- 0.05 | M5 |
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