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AT REDUCED SHANK DRILLS

AT reduced shank drills—often called Silver & Deming drill bits—are designed to drill larger hole diameters while using a reduced shank size that fits common drill chucks (application dependent). They’re frequently used in fabrication and maintenance work when you need a larger drill diameter but want to run the tool in a standard 1/2" chuck without switching to specialty tooling.

Alfa Tools SD250413 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250413 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250413
MPN: SD250413

Save $21.39
Alfa Tools SD250413C 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250413C 23/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250413C
MPN: SD250413C

Save $24.06
Alfa Tools SD250414 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250414 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250414
MPN: SD250414

Save $22.56
Alfa Tools SD250414C 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250414C 47/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250414C
MPN: SD250414C

Save $25.24
Alfa Tools SD250415 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250415 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250415
MPN: SD250415

Save $20.73
Alfa Tools SD250415C 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250415C 3/4 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250415C
MPN: SD250415C

Save $23.41
Alfa Tools SD250416 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250416 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250416
MPN: SD250416

Save $22.56
Alfa Tools SD250416A 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250416A 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250416A
MPN: SD250416A

Save $22.56
Alfa Tools SD250416AC 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250416AC 49/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250416AC
MPN: SD250416AC

Save $25.24
Alfa Tools SD250416C 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250416C 25/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250416C
MPN: SD250416C

Save $25.24
Alfa Tools SD250417 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250417 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250417
MPN: SD250417

Save $22.56
Alfa Tools SD250417A 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250417A 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250417A
MPN: SD250417A

Save $25.62
Alfa Tools SD250417AC 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250417AC 51/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250417AC
MPN: SD250417AC

Save $28.30
Alfa Tools SD250417C 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250417C 13/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250417C
MPN: SD250417C

Save $25.24
Alfa Tools SD250418 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250418 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250418
MPN: SD250418

Save $22.93
Alfa Tools SD250418A 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250418A 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250418A
MPN: SD250418A

Save $26.59
Alfa Tools SD250418AC 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250418AC 53/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250418AC
MPN: SD250418AC

Save $29.27
Alfa Tools SD250418C 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250418C 27/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250418C
MPN: SD250418C

Save $25.61
Alfa Tools SD250419 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250419 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250419
MPN: SD250419

Save $22.93
Alfa Tools SD250419A 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250419A 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250419A
MPN: SD250419A

Save $22.93
Alfa Tools SD250419AC 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250419AC 55/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250419AC
MPN: SD250419AC

Save $25.61
Alfa Tools SD250419C 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

Alfa Tools SD250419C 7/8 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED

SKU: AT-SD250419C
MPN: SD250419C

Save $25.61
Alfa Tools SD250420 29/32 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250420 29/32 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250420
MPN: SD250420

Save $34.10
Alfa Tools SD250420A 57/64 HSS ECO PRO S&D DRILL 1/2" SHANK

Alfa Tools SD250420A 57/64 HSS ECO PRO S&D DRILL 1/2" SHANK

SKU: AT-SD250420A
MPN: SD250420A

Save $32.85