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Cobalt Boring Bars

Cobalt Boring Bars

Cobalt Boring Bars.
"Co-Bore" made in the USA by APT.

Quantity Price Model Description Shank Diameter Overall Length Bore Depth Minimum Bore Diameter

$14.00 BBCO-A3S
Cobalt Boring Bar, USA/APT, 3/8" Shank Short, 1206-0250 3/8" 1 13/16" 9/16" 3/16"

$14.80 BBCO-A3L
Cobalt Boring Bar, USA/APT, 3/8" Shank Long, 1206-0255 3/8" 2 3/16" 15/16" 3/16"

$15.00 BBCO-A4S
Cobalt Boring Bar, USA/APT, 3/8" Shank Short, 1206-0260 3/8" 2" 3/4" 1/4"

$15.80 BBCO-A4L
Cobalt Boring Bar, USA/APT, 3/8" Shank Long, 1206-0265 3/8" 2 1/2" 1 1/4" 1/4"

$16.00 BBCO-A5S
Cobalt Boring Bar, USA/APT, 3/8" Shank Short, 1206-0270 3/8" 2 3/16" 15/16" 5/16"

$16.80 BBCO-A5L
Cobalt Boring Bar, USA/APT, 3/8" Shank Long, 1206-0275 3/8" 2 13/16" 1 9/16" 5/16"

$18.00 BBCO-A6S
Cobalt Boring Bar, USA/APT, 3/8" Shank Short, 1206-0280 3/8" 2 3/8" 1 1/8" 3/8"

$18.80 BBCO-A6L
Cobalt Boring Bar, USA/APT, 3/8" Shank Long, 1206-0285 3/8" 3 1/8" 1 7/8" 3/8"

$18.00 BBCO-B4S
Cobalt Boring Bar, USA/APT, 1/2" Shank Short, 1206-0290 1/2" 2 1/8" 3/4" 1/4"

$18.80 BBCO-B4L
Cobalt Boring Bar, USA/APT, 1/2" Shank Long, 1206-0295 1/2" 2 5/8" 1 1/4" 1/4"

$19.00 BBCO-B5S
Cobalt Boring Bar, USA/APT, 1/2" Shank Short, 1206-0300 1/2" 2 5/16" 15/16" 5/16"

$19.80 BBCO-B5L
Cobalt Boring Bar, USA/APT, 1/2" Shank Long, 1206-0305 1/2" 2 15/16" 19/16" 5/16"

$20.00 BBCO-B6S
Cobalt Boring Bar, USA/APT, 1/2" Shank Short, 1206-0310 1/2" 2 1/2" 1 1/8" 3/8"

$20.80 BBCO-B6L
Cobalt Boring Bar, USA/APT, 1/2" Shank Long, 1206-0315 1/2" 2 1/4" 1 7/8" 3/8"

$21.00 BBCO-B7S
Cobalt Boring Bar, USA/APT, 1/2" Shank Short, 1206-0320 1/2" 2 11/16" 15/16" 7/16"

$21.80 BBCO-B7L
Cobalt Boring Bar, USA/APT, 1/2" Shank Long, 1206-0325 1/2" 3 9/16" 2 3/16" 7/16"

$22.00 BBCO-B8S
Cobalt Boring Bar, USA/APT, 1/2" Shank Short, 1206-0330 1/2" 2 7/8" 1 1/2" 1/2"

$22.80 BBCO-B8L
Cobalt Boring Bar, USA/APT, 1/2" Shank Long, 1206-0335 1/2" 3 7/8" 2 1/2" 1/2"

$24.00 BBCO-C6S
Cobalt Boring Bar, USA/APT, 5/8" Shank Short, 1206-0340 5/8" 2-5/8 1-1/8 3/8

$24.80 BBCO-C6L
Cobalt Boring Bar, USA/APT, 5/8" Shank Long, 1206-0345 5/8" 3-3/8 1-7/8 3/8

$25.00 BBCO-C7S
Cobalt Boring Bar, USA/APT, 5/8" Shank Short, 1206-0350 5/8" 2-13/16 1-5/16 7/16

$27.00 BBCO-C7L
Cobalt Boring Bar, USA/APT, 5/8" Shank Long, 1206-0355 5/8" 3-11/16 2-3/16 7/16

$28.00 BBCO-C8S
Cobalt Boring Bar, USA/APT, 5/8" Shank Short, 1206-0360 5/8" 3 1-1/2 1/2

$30.00 BBCO-C8L
Cobalt Boring Bar, USA/APT, 5/8" Shank Long, 1206-0365 5/8" 4 2-1/2 1/2

$32.00 BBCO-C9S
Cobalt Boring Bar, USA/APT, 5/8" Shank Short, 1206-0370 5/8" 3-3/16 1-11/16 9/16

$34.00 BBCO-C9L
Cobalt Boring Bar, USA/APT, 5/8" Shank Long, 1206-0375 5/8" 4-5/16 2-13/16 9/16

$36.00 BBCO-C10S
Cobalt Boring Bar, USA/APT, 5/8" Shank Short, 1206-0380 5/8" 3-3/8 1-7/8 5/8

$37.00 BBCO-C10L
Cobalt Boring Bar, USA/APT, 5/8" Shank Long, 1206-0385 5/8" 4-5/8 3-1/8 5/8

$28.00 BBCO-D6S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0390 3/4" 2 7/8" 1 1/8" 3/8"

$28.30 BBCO-D6L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0395 3/4" 3 5/8" 1 7/8" 3/8"

$30.00 BBCO-D7S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0400 3/4" 3 1/16" 15/16" 7/16"

$31.00 BBCO-D7L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0405 3/4" 3 15/16" 2 3/16" 7/16"

$32.00 BBCO-D8S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0410 3/4" 3 1/4" 1 1/2" 1/2"

$33.00 BBCO-D8L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0415 3/4" 4 1/4" 2 1/2" 1/2"

$33.00 BBCO-D9S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0420 3/4" 3 7/16" 1 11/16" 9/16"

$35.00 BBCO-D9L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0425 3/4" 4 9/16" 2 13/16" 9/16"

$35.00 BBCO-D10S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0430 3/4" 3 5/8" 1 7/8" 5/8"

$36.00 BBCO-D10L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0435 3/4" 4 7/8" 3 1/8" 5/8"

$37.00 BBCO-D11S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0440 3/4" 3 3/16" 2 1/16" 11/16"

$39.00 BBCO-D11L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0445 3/4" 5 3/16" 3 7/16" 11/16"

$40.00 BBCO-D12S
Cobalt Boring Bar, USA/APT, 3/4" Shank Short, 1206-0450 3/4" 4" 2 1/4" 3/4"

$41.00 BBCO-D12L
Cobalt Boring Bar, USA/APT, 3/4" Shank Long, 1206-0455 3/4" 5 1/2" 3 3/4" 3/4"

Cobalt Boring Bar Sets

Cobalt Boring Bar Sets
Sets of "Co-Bore" bars, made in the USA by APT.
Less chatter than carbide tipped boring bars.
Will take more heat than high speed steel.
Easy to sharpen.
Quantity Price Model Description

$116.80 BBCO-SAH375
Cobalt Boring Bar Set 8pcs, USA/APT "Co-Bore" 3/8" Shank, 1206-9960

$180.50 BBCO-SBH500
Cobalt Boring Bar Set 10 pcs, USA/APT "Co-Bore" 1/2" Shank, 1206-9970

$264.50 BBCO-SCH625
Cobalt Boring Bar Set 10 pcs, USA/APT "Co-Bore" 5/8" Shank, 1206-9980

$420.85 BBCO-SDH750
Cobalt Boring Bar Set 14 pcs, USA/APT "Co-Bore" 3/4" Shank, 1206-9990