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AT COUNTERSINKS

AT countersinks are cutting tools used to create a chamfer or countersunk seat at the top of a drilled hole (application dependent). They’re commonly used to seat flat-head fasteners flush with the surface and to break sharp edges after drilling for improved fit, finish, and handling safety. Because countersinks are selected by both fastener requirements and material, choosing the right angle and flute style is key to getting consistent results.
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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Save $17.32