Radial Relief Boring Bars

Radial relief design minimizes rubbing to help improve surface finish

Reduced cutting pressure supports better stability and less chatter
Helps maintain size control when boring conditions are prone to vibration
Optional AlTiN+ coating extends tool life

Radial Relief Boring Bars are engineered to reduce contact in the bore for smoother finishes and more stable cutting, especially in longer reach or sensitive setups.

How to Buy

Technical Support

A (Minimum Bore)	B (Maximum Depth)	S (Shank Diameter)	OAL	Tool #	Uncoated EDP #	AlTiN+ EDP #
0.060	0.125	0.1250	1.50	BB61	210342	211062
0.060	0.250	0.1250	1.50	BB62	210345	211065
0.060	0.375	0.1250	1.50	BB63	210348	211068
0.060	0.500	0.1250	1.50	BB64	210351	211071
0.075	0.125	0.1250	1.50	BB71	210354	211074
0.075	0.250	0.1250	1.50	BB72	210357	211077
0.075	0.375	0.1250	1.50	BB73	210360	211080
0.075	0.500	0.1250	1.50	BB74	210363	211083
0.090	0.125	0.1250	1.50	BB91	210366	211086
0.090	0.250	0.1250	1.50	BB92	210369	211089
0.090	0.375	0.1250	1.50	BB93	210372	211092
0.090	0.500	0.1250	1.50	BB94	210375	211095
0.090	0.625	0.1250	1.50	BB95	210378	211098
0.105	0.250	0.1250	1.50	BB102	210201	210921
0.105	0.375	0.1250	1.50	BB103	210204	210924
0.105	0.500	0.1250	1.50	BB104	210207	210927
0.105	0.625	0.1250	1.50	BB105	210210	210930
0.120	0.250	0.1250	1.50	BB122	210213	210933
0.120	0.375	0.1250	1.50	BB123	210216	210936
0.120	0.500	0.1250	1.50	BB124	210219	210939
0.120	0.625	0.1250	1.50	BB125	210222	210942
0.120	0.750	0.1250	1.50	BB126	210225	210945
0.155	0.375	0.1875	2.00	BB153	210228	210948
0.155	0.500	0.1875	2.00	BB154	210231	210951
0.155	0.625	0.1875	2.00	BB155	210234	210954
0.155	0.750	0.1875	2.00	BB156	210237	210957
0.155	1.000	0.1875	2.00	BB158	210240	210960
0.185	0.375	0.1875	2.00	BB183	210246	210966
0.185	0.500	0.1875	2.00	BB184	210249	210969
0.185	0.625	0.1875	2.00	BB185	210252	210972
0.185	0.750	0.1875	2.00	BB186	210255	210975
0.185	1.000	0.1875	2.00	BB188	210258	210978
0.185	1.250	0.1875	2.00	BB1812	210243	210963
0.220	0.500	0.2500	2.00	BB224	210264	210984
0.220	0.625	0.2500	2.00	BB225	210267	210987
0.220	0.750	0.2500	2.00	BB226	210270	210990
0.220	1.000	0.2500	2.00	BB228	210273	210993
0.220	1.250	0.2500	2.50	BB2212	210261	210981
0.248	0.500	0.2500	2.00	BB254	210282	211002
0.248	0.625	0.2500	2.00	BB255	210285	211005
0.248	0.750	0.2500	2.00	BB256	210288	211008
0.248	1.000	0.2500	2.00	BB258	210291	211011
0.248	1.250	0.2500	2.50	BB2512	210276	210996
0.248	1.500	0.2500	2.50	BB2514	210279	210999
0.310	0.500	0.3125	2.00	BB314	210303	211023
0.310	0.750	0.3125	2.00	BB316	210306	211026
0.310	0.750	0.3125	2.50	BB316L	210309	211029
0.310	1.000	0.3125	2.50	BB318	210312	211032
0.310	1.250	0.3125	2.50	BB3112	210294	211014
0.310	1.500	0.3125	2.50	BB3114	210297	211017
0.310	1.750	0.3125	3.00	BB3116	210300	211020
0.373	0.500	0.3750	2.00	BB374	210330	211050
0.373	0.750	0.3750	2.00	BB376	210333	211053
0.373	0.750	0.3750	2.50	BB376L	210336	211056
0.373	1.000	0.3750	2.50	BB378	210339	211059
0.373	1.250	0.3750	2.50	BB3712	210315	211035
0.373	1.500	0.3750	2.50	BB3714	210318	211038
0.373	1.500	0.3750	3.00	BB3714L	210321	211041
0.373	1.750	0.3750	3.00	BB3716	210324	211044
0.373	2.000	0.3750	3.00	BB3718	210327	211047

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