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CIRCLE Style Mini Boring Bars - Min Bore .270-.360 & TDAB (60° Triangle) Inserts

REDUCED NECK BORING BARS
USING TRIANGLE SHAPED TDAB INSERTS
  • Minimum bore: .270 to .360
  • Uses TDAB type inserts
  • Shanks have locating flats for easy set-up
  • Available in steel, heavy metal or carbide shanks
  • Made in the USA
Prices are pulled from our database in real time. Press Add button to see product price.
Steel Shank-4xD Heavy Metal-6xD Carbide Shank-8XD
Min
Bore		 A
Boring Depth		 B
Shank Dia		 C
OAL		 Part Number Part Number Part Number Screws Wrench
.270 - 0.187 3.500 BBC-1300R
- - 19502
TX-206
4.000 - BBC-3305R
-
0.500 0.500 3.000 BBC-1315R
- -
0.625 3.000 BBC-1320R
- -
1.00 0.500 4.000 BBC-1330R
- -
0.625 4.000 BBC-1335R
- -
1.625 0.500 4.000 - BBC-3340R
-
0.625 4.000 - BBC-3345R
-
2.250 0.500 5.000 - - BBC-5350R
0.625 5.000 - - BBC-5355R
.300 - 0.250 4.000 BBC-1360R
BBC-3360R
-
0.750 0.500 3.000 BBC-1370R
- -
0.625 - BBC-1375R
- -
1.250 0.500 3.000 BBC-1380R
- -
0.625 - BBC-1385R
- -
1.875 0.500 4.000 - BBC-3390R
-
0.625 4.000 - BBC-3395R
-
2.500 0.500 5.000 - - BBC-5400R
0.625 5.000 - - BBC-5405R
.360 - 0.312 4.000 BBC-1410R
BBC-3410R
BBC-5415R
1.000 0.500 3.000 BBC-1420R
- -
0.625 3.000 BBC-1425R
- -
1.500 0.500 3.000 BBC-1430R
- -
0.625 4.000 BBC-1435R
- -
2.250 0.500 4.000 - BBC-3440R
-
0.625 4.000 - BBC-3445R
-
3.125 0.500 5.000 - - BBC-5450R
0.625 5.000 - - BBC-5455R
*Circle is a registered trademark of Circle Machine Company
TDAB TYPE INSERTS
Prices are pulled from our database in real time. Press Add button to see product price.
Uncoated
CM2 C1/C2		 Coated
CVM2 C1/C2		 Uncoated
CS7 C6/C7		 Coated
CV7 C6/C7		 Coated
TL120
I.C. T R          
.160 .047 .002 US-751
US-761
US-756
US-771
US-781
.007 US-752
US-762
US-757
US-772
US-782
.015 US-753
US-763
US-758
US-773
US-783
GRADE SELECTION CHART
Grade Coating Material Operation
CM2 Uncoated Non Ferrous Alloys, High Strength Steel Alloys Finish
CVM2 TiN Coated Non Ferrous materials, Stainless Steels Semi-finish, Finish
CS7 UnCoated Carbon Steels, Alloy Steels, Tool Steels Semi-finish
CV7 TiN Coated Steels, Stainless Steels Semi FInish, Finish
TL120 TiAlN Coated High Temp Alloys, Stainless Steels Semi FInish, Finish