Please allow 1-2 weeks delivery outside the USA
Our solid carbide Mini Boring Bars available in both coated and uncoated options, are designed for precision in tight spaces and small-diameter applications, starting at a 0.015 minimum bore.
Made with premium submicron grade carbide, these tools offer exceptional durability and strength.
The flute is engineered for maximum strength, and the AlTiN+ coating improves surface finish and extends tool life.
Perfect for intricate machining tasks, these mini boring bars provide reliable performance, tight tolerances, and superior results across various materials.

For uncoated mini boring bars, click HERE
| A (Minimum Bore) |
B (Maximum Depth) |
S (Shank Diameter) |
OAL |
Tool # |
Uncoated EDP # |
AlTiN+ EDP # |
| 0.015 |
0.05 |
0.125 |
1.5 |
MB015050 |
SCI.210001 |
SCI.210071 |
| 0.02 |
0.075 |
0.125 |
1.5 |
MB020075 |
SCI.210004 |
SCI.210074 |
| 0.025 |
0.1 |
0.125 |
1.5 |
MB025100 |
SCI.210007 |
SCI.210077 |
| 0.025 |
0.125 |
0.125 |
1.5 |
MB025125 |
SCI.210010 |
SCI.210080 |
| 0.03 |
0.1 |
0.125 |
1.5 |
MB030100 |
SCI.210013 |
SCI.210083 |
| 0.03 |
0.125 |
0.125 |
1.5 |
MB030125 |
SCI.210016 |
SCI.210086 |
| 0.03 |
0.15 |
0.125 |
1.5 |
MB030150 |
SCI.210019 |
SCI.210089 |
| 0.035 |
0.1 |
0.125 |
1.5 |
MB035100 |
SCI.210022 |
SCI.210092 |
| 0.035 |
0.15 |
0.125 |
1.5 |
MB035150 |
SCI.210025 |
SCI.210095 |
| 0.035 |
0.2 |
0.125 |
1.5 |
MB035200 |
SCI.210028 |
SCI.210098 |
| 0.04 |
0.1 |
0.125 |
1.5 |
MB040100 |
SCI.210031 |
SCI.210101 |
| 0.04 |
0.15 |
0.125 |
1.5 |
MB040150 |
SCI.210034 |
SCI.210104 |
| 0.04 |
0.2 |
0.125 |
1.5 |
MB040200 |
SCI.210037 |
SCI.210107 |
| 0.04 |
0.25 |
0.125 |
1.5 |
MB040250 |
SCI.210040 |
SCI.210110 |
| 0.045 |
0.1 |
0.125 |
1.5 |
MB045100 |
SCI.210043 |
SCI.210113 |
| 0.045 |
0.15 |
0.125 |
1.5 |
MB045150 |
SCI.210046 |
SCI.210116 |
| 0.045 |
0.2 |
0.125 |
1.5 |
MB045200 |
SCI.210049 |
SCI.210119 |
| 0.045 |
0.25 |
0.125 |
1.5 |
MB045250 |
SCI.210052 |
SCI.210122 |
| 0.045 |
0.3 |
0.125 |
1.5 |
MB045300 |
SCI.210055 |
SCI.210125 |
| 0.045 |
0.35 |
0.125 |
1.5 |
MB045350 |
SCI.210058 |
SCI.210128 |