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AT HSS Countersinks

AT hole enlarging core drills are designed to enlarge or open up existing holes in metalworking and industrial applications (application dependent). Unlike standard twist drills that start from solid material, core drills are commonly used when a hole is already present and you need to bring it to a larger diameter with improved control and efficiency—often in fabrication, maintenance, and repair work.

Alfa Tools CSF16012 2 X 3/4 HSS 60° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF16012 2 X 3/4 HSS 60° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF16012
MPN: CSF16012

Save $302
Alfa Tools CSF16020 5 PC HSS 60° USA COUNTERSINK SET

Alfa Tools CSF16020 5 PC HSS 60° USA COUNTERSINK SET

SKU: AT-CSF16020
MPN: CSF16020

Save $168.30
Alfa Tools CSF17001 1/8 X 1/8 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17001 1/8 X 1/8 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17001
MPN: CSF17001

Save $13.31
Alfa Tools CSF17002 3/16 X 3/16 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17002 3/16 X 3/16 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17002
MPN: CSF17002

Save $13.59
Alfa Tools CSF17003 1/4 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17003 1/4 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17003
MPN: CSF17003

Save $14.13
Alfa Tools CSF17004 3/8 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17004 3/8 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17004
MPN: CSF17004

Save $16
Alfa Tools CSF17005 1/2 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17005 1/2 X 1/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17005
MPN: CSF17005

Save $19.67
Alfa Tools CSF17006 5/8 X 3/8 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17006 5/8 X 3/8 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17006
MPN: CSF17006

Save $26.22
Alfa Tools CSF17007 3/4 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17007 3/4 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17007
MPN: CSF17007

Save $37.85
Alfa Tools CSF17008 1 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17008 1 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17008
MPN: CSF17008

Save $64.67
Alfa Tools CSF17009 1-1/4 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17009 1-1/4 X 1/2 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17009
MPN: CSF17009

Save $126.02
Alfa Tools CSF17010 1-1/2 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17010 1-1/2 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17010
MPN: CSF17010

Save $170.46
Alfa Tools CSF17011 1-3/4 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17011 1-3/4 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17011
MPN: CSF17011

Save $217.77
Alfa Tools CSF17012 2 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF17012 2 X 3/4 HSS 90° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF17012
MPN: CSF17012

Save $302
Alfa Tools CSF17020 5 PC HSS 90° USA COUNTERSINK SET

Alfa Tools CSF17020 5 PC HSS 90° USA COUNTERSINK SET

SKU: AT-CSF17020
MPN: CSF17020

Save $168.30
Alfa Tools CSF18001 1/8 X 1/8 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18001 1/8 X 1/8 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18001
MPN: CSF18001

Save $13.31
Alfa Tools CSF18002 3/16 X 3/16 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18002 3/16 X 3/16 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18002
MPN: CSF18002

Save $13.59
Alfa Tools CSF18003 1/4 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18003 1/4 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18003
MPN: CSF18003

Save $14.13
Alfa Tools CSF18004 3/8 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18004 3/8 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18004
MPN: CSF18004

Save $16
Alfa Tools CSF18005 1/2 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18005 1/2 X 1/4 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18005
MPN: CSF18005

Save $19.67
Alfa Tools CSF18006 5/8 X 3/8 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18006 5/8 X 3/8 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18006
MPN: CSF18006

Save $26.22
Alfa Tools CSF18007 3/4 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18007 3/4 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18007
MPN: CSF18007

Save $37.85
Alfa Tools CSF18008 1 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18008 1 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18008
MPN: CSF18008

Save $64.67
Alfa Tools CSF18009 1-1/4 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

Alfa Tools CSF18009 1-1/4 X 1/2 HSS 100° SINGLE FLUTE USA COUNTERSINK

SKU: AT-CSF18009
MPN: CSF18009

Save $124.34