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 SDCO50425 1-1/16 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50425
MPN: SDCO50425
Alfa Tools SDCO50427 1-1/8 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50427
MPN: SDCO50427
Alfa Tools SDCO50429 1-3/16 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50429
MPN: SDCO50429
Alfa Tools SDCO50431 1-1/4 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50431
MPN: SDCO50431
Alfa Tools SDCO50433 1-5/16 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50433
MPN: SDCO50433
Alfa Tools SDCO50435 1 3/8 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50435
MPN: SDCO50435
Alfa Tools SDCO50437 1-7/16 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50437
MPN: SDCO50437
Alfa Tools SDCO50439 1-1/2 COBALT S&D DRILL 1/2" SHANK
SKU: AT-SDCO50439
MPN: SDCO50439
Alfa Tools SDCO50449A 8PC . 1/2 SHANK SILVER & DEMING COBALT SET
SKU: AT-SDCO50449A
MPN: SDCO50449A
Alfa Tools SDCO50450 33PC . COBALT SILVER & DEMING SET 1/2"-1"
SKU: AT-SDCO50450
MPN: SDCO50450