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 SD250420AC 57/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250420AC
MPN: SD250420AC
Alfa Tools SD250420C 29/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250420C
MPN: SD250420C
Alfa Tools SD250421 15/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250421
MPN: SD250421
Alfa Tools SD250421A 59/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250421A
MPN: SD250421A
Alfa Tools SD250421AC 59/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250421AC
MPN: SD250421AC
Alfa Tools SD250421C 15/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250421C
MPN: SD250421C
Alfa Tools SD250422 31/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250422
MPN: SD250422
Alfa Tools SD250422A 61/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250422A
MPN: SD250422A
Alfa Tools SD250422AC 61/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250422AC
MPN: SD250422AC
Alfa Tools SD250422C 31/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250422C
MPN: SD250422C
Alfa Tools SD250423 1" HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250423
MPN: SD250423
Alfa Tools SD250423A 63/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250423A
MPN: SD250423A
Alfa Tools SD250423AC 63/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250423AC
MPN: SD250423AC
Alfa Tools SD250423C 1" HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250423C
MPN: SD250423C
Alfa Tools SD250425 1 1/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250425
MPN: SD250425
Alfa Tools SD250427 1 1/8 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250427
MPN: SD250427
Alfa Tools SD250429 1 3/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250429
MPN: SD250429
Alfa Tools SD250431 1 1/4 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250431
MPN: SD250431
Alfa Tools SD250433 1 5/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250433
MPN: SD250433
Alfa Tools SD250435 1 3/8 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250435
MPN: SD250435
Alfa Tools SD250437 1 7/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250437
MPN: SD250437
Alfa Tools SD250439 1 1/2 HSS ECO 1/2" RSD SHANK DRILL
SKU: AT-SD250439
MPN: SD250439
Alfa Tools SD250449A 8PC . ECO PRO SILVER & DEMING 1/2"SHANK SET
SKU: AT-SD250449A
MPN: SD250449A
Alfa Tools SD250450 33PC HSS SILVER & DEMING SET STEEL STND ECO
SKU: AT-SD250450
MPN: SD250450