AT COUNTERSINKS

Alfa Tools countersinks provide the precision and clean finish required by machinists, fabricators, and woodworkers for professional fastener installation. Whether you’re countersinking for flathead screws, deburring holes, or creating chamfers, our extensive selection offers the exact angles and sizes needed for flush, high-quality results every time.


Alfa Tools C3F50541 2" X 3/4 HSS 82° 3 FLUTE COUNTERSINK

Alfa Tools C3F50541 2" X 3/4 HSS 82° 3 FLUTE COUNTERSINK

SKU: AT-C3F50541
MPN: C3F50541

Sale price $163.00 List price $325.19
Save $162.19
Alfa Tools C3F50541A 2 X 3/4 HSS 60° 3 FLUTE COUNTERSINK

Alfa Tools C3F50541A 2 X 3/4 HSS 60° 3 FLUTE COUNTERSINK

SKU: AT-C3F50541A
MPN: C3F50541A

Sale price $163.00 List price $325.19
Save $162.19
Alfa Tools C3F50541B 2 X 3/4 HSS 90° 3 FLUTE COUNTERSINK

Alfa Tools C3F50541B 2 X 3/4 HSS 90° 3 FLUTE COUNTERSINK

SKU: AT-C3F50541B
MPN: C3F50541B

Sale price $163.00 List price $325.19
Save $162.19
Alfa Tools C3F50542 7/8 X 1/2 HSS 82° 3 FLUTE COUNTERSINK

Alfa Tools C3F50542 7/8 X 1/2 HSS 82° 3 FLUTE COUNTERSINK

SKU: AT-C3F50542
MPN: C3F50542

Sale price $34.57 List price $68.96
Save $34.39
Alfa Tools C3F50573 5PC SET 82° 3 FLUTE COUNTERSINK 1/4-1"

Alfa Tools C3F50573 5PC SET 82° 3 FLUTE COUNTERSINK 1/4-1"

SKU: AT-C3F50573
MPN: C3F50573

Sale price $108.66 List price $216.77
Save $108.11
Alfa Tools C3F50573A 5PC SET 60° 3 FLUTE COUNTERSINK 1/4-1"

Alfa Tools C3F50573A 5PC SET 60° 3 FLUTE COUNTERSINK 1/4-1"

SKU: AT-C3F50573A
MPN: C3F50573A

Sale price $108.66 List price $216.77
Save $108.11
Alfa Tools C3F50573B 5PC SET 90° 3 FLUTE COUNTERSINK 1/4-1"

Alfa Tools C3F50573B 5PC SET 90° 3 FLUTE COUNTERSINK 1/4-1"

SKU: AT-C3F50573B
MPN: C3F50573B

Sale price $108.66 List price $216.77
Save $108.11
Alfa Tools C4F50542 1/2 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

Alfa Tools C4F50542 1/2 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

SKU: AT-C4F50542
MPN: C4F50542

Sale price $32.88 List price $65.61
Save $32.73
Alfa Tools C4F50542A 1/2 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

Alfa Tools C4F50542A 1/2 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

SKU: AT-C4F50542A
MPN: C4F50542A

Sale price $32.88 List price $65.61
Save $32.73
Alfa Tools C4F50542B 1/2 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

Alfa Tools C4F50542B 1/2 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

SKU: AT-C4F50542B
MPN: C4F50542B

Sale price $32.88 List price $65.61
Save $32.73
Alfa Tools C4F50543 5/8 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

Alfa Tools C4F50543 5/8 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

SKU: AT-C4F50543
MPN: C4F50543

Sale price $38.28 List price $76.37
Save $38.09
Alfa Tools C4F50543A 5/8 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

Alfa Tools C4F50543A 5/8 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

SKU: AT-C4F50543A
MPN: C4F50543A

Sale price $38.28 List price $76.37
Save $38.09
Alfa Tools C4F50543B 5/8 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

Alfa Tools C4F50543B 5/8 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

SKU: AT-C4F50543B
MPN: C4F50543B

Sale price $38.28 List price $76.37
Save $38.09
Alfa Tools C4F50544 3/4 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

Alfa Tools C4F50544 3/4 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

SKU: AT-C4F50544
MPN: C4F50544

Sale price $48.83 List price $97.39
Save $48.56
Alfa Tools C4F50544A 3/4 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

Alfa Tools C4F50544A 3/4 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

SKU: AT-C4F50544A
MPN: C4F50544A

Sale price $48.83 List price $97.39
Save $48.56
Alfa Tools C4F50544B 3/4 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

Alfa Tools C4F50544B 3/4 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

SKU: AT-C4F50544B
MPN: C4F50544B

Sale price $48.83 List price $97.39
Save $48.56
Alfa Tools C4F50545 7/8 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

Alfa Tools C4F50545 7/8 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

SKU: AT-C4F50545
MPN: C4F50545

Sale price $53.71 List price $107.16
Save $53.45
Alfa Tools C4F50545A 7/8 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

Alfa Tools C4F50545A 7/8 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

SKU: AT-C4F50545A
MPN: C4F50545A

Sale price $53.71 List price $107.16
Save $53.45
Alfa Tools C4F50545B 7/8 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

Alfa Tools C4F50545B 7/8 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

SKU: AT-C4F50545B
MPN: C4F50545B

Sale price $53.71 List price $107.16
Save $53.45
Alfa Tools C4F50546 1 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

Alfa Tools C4F50546 1 X 1/2 HSS 82° 4 FLUTE COUNTERSINK

SKU: AT-C4F50546
MPN: C4F50546

Sale price $59.26 List price $118.22
Save $58.96
Alfa Tools C4F50546A 1 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

Alfa Tools C4F50546A 1 X 1/2 HSS 60° 4 FLUTE COUNTERSINK

SKU: AT-C4F50546A
MPN: C4F50546A

Sale price $59.26 List price $118.22
Save $58.96
Alfa Tools C4F50546B 1 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

Alfa Tools C4F50546B 1 X 1/2 HSS 90° 4 FLUTE COUNTERSINK

SKU: AT-C4F50546B
MPN: C4F50546B

Sale price $59.26 List price $118.22
Save $58.96
Alfa Tools C5F50561 3/8X1/4 HEX SHANK 82° 5FL COUNTERSINK

Alfa Tools C5F50561 3/8X1/4 HEX SHANK 82° 5FL COUNTERSINK

SKU: AT-C5F50561
MPN: C5F50561

Sale price $15.00 List price $29.94
Save $14.94
Alfa Tools C5F50561C 3/8 HEX SHANK 82° 5FL COUNTERSINK CARDED

Alfa Tools C5F50561C 3/8 HEX SHANK 82° 5FL COUNTERSINK CARDED

SKU: AT-C5F50561C
MPN: C5F50561C

Sale price $17.44 List price $34.76
Save $17.32