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 AV4255742 1/4 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255742
MPN: 917-000-305
Keo AV4255743 3/8 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255743
MPN: 917-000-307
Keo AV4255744 1/2 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255744
MPN: 917-000-309
Keo AV4255745 5/8 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255745
MPN: 917-000-311
Keo AV4255746 3/4 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255746
MPN: 917-000-313
Keo AV4255747 1 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255747
MPN: 917-000-315
Keo AV4255748 1 1/4 × 60 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255748
MPN: 917-000-317
Keo AV4255749 5 PC SET 60 DEG 3FL CARB CSINK
SKU: FTS-AV4255749
MPN: 917-000-319
Keo AV4255750 1/8 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255750
MPN: 917-000-321
Keo AV4255751 3/16 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255751
MPN: 917-000-323
Keo AV4255752 1/4 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255752
MPN: 917-000-325
Keo AV4255753 3/8 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255753
MPN: 917-000-327
Keo AV4255754 1/2 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255754
MPN: 917-000-329
Keo AV4255755 5/8 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255755
MPN: 917-000-331
Keo AV4255756 3/4 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255756
MPN: 917-000-333
Keo AV4255757 1 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255757
MPN: 917-000-335
Keo AV4255758 1 1/4 × 82 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255758
MPN: 917-000-337
Keo AV4255759 5 PC SET 82 DEG 3FL CARB CSINK
SKU: FTS-AV4255759
MPN: 917-000-339
Keo AV4255760 1/8 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255760
MPN: 917-000-341
Keo AV4255761 3/16 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255761
MPN: 917-000-343
Keo AV4255762 1/4 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255762
MPN: 917-000-345
Keo AV4255763 3/8 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255763
MPN: 917-000-347
Keo AV4255764 1/2 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255764
MPN: 917-000-349
Keo AV4255765 5/8 × 90 DEG 3FL CARBIDE C/SINK
SKU: FTS-AV4255765
MPN: 917-000-351