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 SD50428 1-5/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50428
MPN: SD50428
Alfa Tools SD50428A 1-9/64 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50428A
MPN: SD50428A
Alfa Tools SD50429 1.3/16 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50429
MPN: SD50429
Alfa Tools SD50429A 1-11/64 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50429A
MPN: SD50429A
Alfa Tools SD50430 1-7/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50430
MPN: SD50430
Alfa Tools SD50430A 1-13/64 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50430A
MPN: SD50430A
Alfa Tools SD50431 1.1/4 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50431
MPN: SD50431
Alfa Tools SD50431A 1-15/64 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50431A
MPN: SD50431A
Alfa Tools SD50432 1-9/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50432
MPN: SD50432
Alfa Tools SD50433 1.5/16 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50433
MPN: SD50433
Alfa Tools SD50434 1-11/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50434
MPN: SD50434
Alfa Tools SD50435 1.3/8 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50435
MPN: SD50435
Alfa Tools SD50436 1-13/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50436
MPN: SD50436
Alfa Tools SD50436A 1-25/64 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50436A
MPN: SD50436A
Alfa Tools SD50437 1.7/16 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50437
MPN: SD50437
Alfa Tools SD50438 1-15/32 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50438
MPN: SD50438
Alfa Tools SD50439 1.1/2 HSS 1/2 SHANK SILVER & DEMING DRILL
SKU: AT-SD50439
MPN: SD50439
Alfa Tools SD50449A 8PC HSS SILVER & DEMING DRILL SET
SKU: AT-SD50449A
MPN: SD50449A
Alfa Tools SD50449PL 8 PC 9/16-1" USA SILVER & DEMING SET PLASTIC CASE
SKU: AT-SD50449PL
MPN: SD50449PL
Alfa Tools SD50450 33PC HSS SILVER & DEMING SET IN STEEL STAND
SKU: AT-SD50450
MPN: SD50450
Alfa Tools SDBB50400 33/64 BLITZ BIT S&D DRILL 1/2" SHANK
SKU: AT-SDBB50400
MPN: SDBB50400
Alfa Tools SDBB50400C 33/64 BLITZ BIT S&D DRILL 1/2" SHANK CARDED
SKU: AT-SDBB50400C
MPN: SDBB50400C
Alfa Tools SDBB50401 17/32 BLITZ BIT S&D DRILL 1/2" SHANK
SKU: AT-SDBB50401
MPN: SDBB50401
Alfa Tools SDBB50401C 17/32 BLITZ BIT S&D DRILL 1/2" SHANK CARDED
SKU: AT-SDBB50401C
MPN: SDBB50401C