AT REDUCED SHANK DRILLS
AT Reduced Shank Drills—also known as Silver & Deming drill bits—are heavy-duty drilling tools designed to produce large-diameter holes while fitting standard drill chucks. Featuring a reduced shank, these drill bits allow larger cutting diameters to be used with common 1/2-inch drill chucks, eliminating the need for specialized tooling in many applications.
Alfa Tools SD250413 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250413
MPN: SD250413
Alfa Tools SD250413C 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250413C
MPN: SD250413C
Alfa Tools SD250414 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250414
MPN: SD250414
Alfa Tools SD250414C 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250414C
MPN: SD250414C
Alfa Tools SD250415 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250415
MPN: SD250415
Alfa Tools SD250415C 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250415C
MPN: SD250415C
Alfa Tools SD250416 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250416
MPN: SD250416
Alfa Tools SD250416A 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250416A
MPN: SD250416A
Alfa Tools SD250416AC 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250416AC
MPN: SD250416AC
Alfa Tools SD250416C 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250416C
MPN: SD250416C
Alfa Tools SD250417 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250417
MPN: SD250417
Alfa Tools SD250417A 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250417A
MPN: SD250417A
Alfa Tools SD250417AC 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250417AC
MPN: SD250417AC
Alfa Tools SD250417C 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250417C
MPN: SD250417C
Alfa Tools SD250418 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250418
MPN: SD250418
Alfa Tools SD250418A 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250418A
MPN: SD250418A
Alfa Tools SD250418AC 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250418AC
MPN: SD250418AC
Alfa Tools SD250418C 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250418C
MPN: SD250418C
Alfa Tools SD250419 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250419
MPN: SD250419
Alfa Tools SD250419A 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250419A
MPN: SD250419A
Alfa Tools SD250419AC 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250419AC
MPN: SD250419AC
Alfa Tools SD250419C 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250419C
MPN: SD250419C
Alfa Tools SD250420 29/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250420
MPN: SD250420
Alfa Tools SD250420A 57/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250420A
MPN: SD250420A