Back Chamfer Boring Bars
Maximize efficiency with our back chamfer boring bars, designed for multifunctional performance—including boring, back boring, thread relief, and back chamfering. Crafted from premium submicron grade carbide, these tools deliver superior strength and durability. Available in uncoated and coated versions, the AlTiN+ coating enhances wear resistance, extending tool life even in high-speed machining applications. With an elliptically ground neck for maximum rigidity, these boring bars provide exceptional stability and precision. Upgrade your machining process with a high-performance tool built for versatility and reliability.
A (Minimum Bore) | B (Maximum Depth) | O (Offest) | R (Tool Radius) | S (Shank Diameter) | OAL | Tool # | Uncoated EDP # | AlTiN+ EDP # |
|---|---|---|---|---|---|---|---|---|
| 0.090 | 0.200 | 0.040 | 0.005 | 0.1250 | 1.50 | PB090200 | 217001 | 217070 |
| 0.090 | 0.300 | 0.040 | 0.005 | 0.1250 | 1.50 | PB090300 | 217004 | 217073 |
| 0.090 | 0.400 | 0.040 | 0.005 | 0.1250 | 1.50 | PB090400 | 217007 | 217076 |
| 0.120 | 0.250 | 0.050 | 0.007 | 0.1250 | 1.50 | PB120250 | 217010 | 217079 |
| 0.120 | 0.500 | 0.050 | 0.007 | 0.1250 | 1.50 | PB120500 | 217013 | 217082 |
| 0.120 | 0.750 | 0.050 | 0.007 | 0.1250 | 1.50 | PB120750 | 217016 | 217085 |
| 0.180 | 0.500 | 0.080 | 0.010 | 0.1875 | 2.00 | PB180500 | 217022 | 217091 |
| 0.180 | 0.750 | 0.080 | 0.010 | 0.1875 | 2.00 | PB180750 | 217025 | 217094 |
| 0.180 | 1.000 | 0.080 | 0.010 | 0.1875 | 2.00 | PB1801000 | 217019 | 217088 |
| 0.230 | 0.500 | 0.090 | 0.010 | 0.2500 | 2.50 | PB230500 | 217031 | 217100 |
| 0.230 | 0.750 | 0.090 | 0.010 | 0.2500 | 2.50 | PB230750 | 217034 | 217103 |
| 0.230 | 1.000 | 0.090 | 0.010 | 0.2500 | 2.50 | PB2301000 | 217028 | 217097 |
| 0.290 | 0.500 | 0.110 | 0.015 | 0.3125 | 2.50 | PB290500 | 217040 | 217109 |
| 0.290 | 0.750 | 0.110 | 0.015 | 0.3125 | 2.50 | PB290750 | 217043 | 217112 |
| 0.290 | 1.000 | 0.110 | 0.015 | 0.3125 | 2.50 | PB2901000 | 217037 | 217106 |
| 0.360 | 0.500 | 0.140 | 0.015 | 0.3750 | 2.50 | PB360500 | 217052 | 217121 |
| 0.360 | 0.750 | 0.140 | 0.015 | 0.3750 | 2.50 | PB360750 | 217055 | 217124 |
| 0.360 | 1.000 | 0.140 | 0.015 | 0.3750 | 2.50 | PB3601000 | 217046 | 217115 |
| 0.360 | 1.250 | 0.140 | 0.015 | 0.3750 | 2.50 | PB3601250 | 217049 | 217118 |
| 0.490 | 0.500 | 0.180 | 0.015 | 0.5000 | 3.00 | PB490500 | 217064 | 217133 |
| 0.490 | 0.750 | 0.180 | 0.015 | 0.5000 | 3.00 | PB490750 | 217067 | 217136 |
| 0.490 | 1.000 | 0.180 | 0.015 | 0.5000 | 3.00 | PB4901000 | 217058 | 217127 |
| 0.490 | 1.250 | 0.180 | 0.015 | 0.5000 | 3.00 | PB4901250 | 217061 | 217130 |