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Back Chamfer Boring Bars

boring bar back chamfer

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.

back chamberboring bar dimensions


A (Minimum Bore) B (Maximum Depth) C (Cut Width) O (Offest) R (Tool Radius) S (Shank Diameter) OAL Tool # Uncoated EDP # AlTiN+ EDP #
0.090 0.300 0.040 0.035 0.010 0.1250 1.50 BC090300 216801 216864
0.090 0.400 0.040 0.035 0.010 0.1250 1.50 BC090400 216804 216867
0.090 0.500 0.040 0.035 0.010 0.1250 1.50 BC090500 216807 216870
0.120 0.400 0.050 0.045 0.010 0.1250 1.50 BC120400 216810 216873
0.120 0.500 0.050 0.045 0.010 0.1250 1.50 BC120500 216813 216876
0.120 0.600 0.050 0.045 0.010 0.1250 1.50 BC120600 216816 216879
0.180 0.500 0.060 0.050 0.010 0.1875 2.00 BC180500 216819 216882
0.180 0.650 0.060 0.050 0.010 0.1875 2.00 BC180650 216822 216885
0.180 0.800 0.060 0.050 0.010 0.1875 2.00 BC180800 216825 216888
0.230 0.500 0.080 0.060 0.010 0.2500 2.50 BC230500 216828 216891
0.230 0.700 0.080 0.060 0.010 0.2500 2.50 BC230700 216831 216894
0.230 0.900 0.080 0.060 0.010 0.2500 2.50 BC230900 216834 216897
0.290 0.700 0.080 0.080 0.010 0.3125 2.50 BC290700 216840 216903
0.290 0.900 0.080 0.080 0.010 0.3125 2.50 BC290900 216843 216906
0.290 1.100 0.080 0.080 0.010 0.3125 2.50 BC2901100 216837 216900
0.360 0.750 0.120 0.120 0.010 0.3750 2.50 BC360750 216852 216915
0.360 1.000 0.120 0.120 0.010 0.3750 2.50 BC3601000 216846 216909
0.360 1.250 0.120 0.120 0.010 0.3750 2.50 BC3601250 216849 216912
0.490 1.000 0.110 0.130 0.010 0.5000 3.00 BC4901000 216855 216918
0.490 1.250 0.110 0.130 0.010 0.5000 3.00 BC4901250 216858 216921
0.490 1.500 0.110 0.130 0.010 0.5000 3.00 BC4901500 216861 216924

 

 

 

 

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Trademarks are the properties of their respective owner(s).

November 2025

The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.


Servicing the Canadian provinces and territories of
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