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IS Counterbore/Countersink

Freer Tool & Supply’s IS counterbore and countersink collection supports clean, accurate hole finishing and proper fastener seating in machining, fabrication, and assembly work. Counterbores create flat-bottom recesses for socket head and cap screws, while countersinks add the chamfer needed for flat head screws and smoother hole entrances—helping improve fit, alignment, and overall assembly quality.

Keo AV4255766 3/4 × 90 DEG 3FL CARBIDE C/SINK

Keo AV4255766 3/4 × 90 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255766
MPN: 917-000-353

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Keo AV4255767 1 × 90 DEG 3FL CARBIDE C/SINK

Keo AV4255767 1 × 90 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255767
MPN: 917-000-355

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Keo AV4255768 1 1/4 × 90 DEG 3FL CARBIDE C/SINK

Keo AV4255768 1 1/4 × 90 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255768
MPN: 917-000-357

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Keo AV4255769 5 PC SET 90D 3FL CARB CSINK

Keo AV4255769 5 PC SET 90D 3FL CARB CSINK

SKU: FTS-AV4255769
MPN: 917-000-359

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Keo AV4255770 1/8 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255770 1/8 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255770
MPN: 917-000-361

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Keo AV4255771 3/16 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255771 3/16 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255771
MPN: 917-000-363

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Keo AV4255771TIALN 3/16 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255771TIALN 3/16 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255771TIALN
MPN: 917-000-364

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Keo AV4255772 1/4 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255772 1/4 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255772
MPN: 917-000-365

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Keo AV4255773 3/8 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255773 3/8 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255773
MPN: 917-000-367

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Keo AV4255774 1/2 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255774 1/2 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255774
MPN: 917-000-369

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Keo AV4255775 5/8 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255775 5/8 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255775
MPN: 917-000-371

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Keo AV4255776 3/4 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255776 3/4 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255776
MPN: 917-000-373

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Keo AV4255777 1 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255777 1 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255777
MPN: 917-000-375

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Keo AV4255778 1 1/4 × 100 DEG 3FL CARBIDE C/SINK

Keo AV4255778 1 1/4 × 100 DEG 3FL CARBIDE C/SINK

SKU: FTS-AV4255778
MPN: 917-000-377

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Keo AV4255779 5 PC SET 100 DEG 3FL CARB CSINK

Keo AV4255779 5 PC SET 100 DEG 3FL CARB CSINK

SKU: FTS-AV4255779
MPN: 917-000-379

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Keo AV4255780 1/8 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255780 1/8 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255780
MPN: 919-000-989

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Keo AV4255781 3/16 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255781 3/16 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255781
MPN: 919-000-991

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Keo AV4255782 1/4 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255782 1/4 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255782
MPN: 919-000-993

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Keo AV4255783 3/8 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255783 3/8 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255783
MPN: 919-000-995

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Keo AV4255784 1/2 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255784 1/2 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255784
MPN: 919-000-997

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Keo AV4255785 5/8 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255785 5/8 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255785
MPN: 919-000-999

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Keo AV4255785TIALN 5/8 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255785TIALN 5/8 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255785TIALN
MPN: 919-001-001

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Keo AV4255786 3/4 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255786 3/4 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255786
MPN: 919-001-002

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Keo AV4255787 1 × 60 DEG 6 FL CARBIDE C/SINK

Keo AV4255787 1 × 60 DEG 6 FL CARBIDE C/SINK

SKU: FTS-AV4255787
MPN: 919-001-004

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