AT REDUCED SHANK DRILLS
Alfa Tools manufactures reduced shank drills (also called Silver & Deming drills or S&D drills), specialized twist drills with smaller-diameter shanks than their cutting diameter, enabling large-hole drilling (9/16" to 1-1/2"+) using standard drill chucks (3/8" or 1/2"). Without reduced shank drills, drilling holes larger than 1/2" requires expensive large-capacity drill chucks (5/8", 3/4", 1") or magnetic drill presses—reduced shank drills eliminate this limitation by fitting standard equipment while delivering full-size hole capacity. Featuring 1/2" shanks (most common), 3/8" shanks (for smaller drills), and 3/4" shanks (for industrial applications), Alfa Tools reduced shank drills are essential for structural steel fabrication, heavy equipment repair, electrical installations, plumbing, HVAC, and any application requiring large holes without specialized equipment.
Alfa Tools SD250400 33/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250400
MPN: SD250400
Alfa Tools SD250400C 33/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250400C
MPN: SD250400C
Alfa Tools SD250401 17/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250401
MPN: SD250401
Alfa Tools SD250401C 17/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250401C
MPN: SD250401C
Alfa Tools SD250402 35/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250402
MPN: SD250402
Alfa Tools SD250402C 35/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250402C
MPN: SD250402C
Alfa Tools SD250403 9/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250403
MPN: SD250403
Alfa Tools SD250403C 9/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250403C
MPN: SD250403C
Alfa Tools SD250404 37/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250404
MPN: SD250404
Alfa Tools SD250404C 37/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250404C
MPN: SD250404C
Alfa Tools SD250405 19/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250405
MPN: SD250405
Alfa Tools SD250405C 19/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250405C
MPN: SD250405C
Alfa Tools SD250406 39/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250406
MPN: SD250406
Alfa Tools SD250406C 39/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250406C
MPN: SD250406C
Alfa Tools SD250407 5/8 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250407
MPN: SD250407
Alfa Tools SD250407C 5/8 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250407C
MPN: SD250407C
Alfa Tools SD250408 41/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250408
MPN: SD250408
Alfa Tools SD250408C 41/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250408C
MPN: SD250408C
Alfa Tools SD250409 21/32 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250409
MPN: SD250409
Alfa Tools SD250409C 21/32 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250409C
MPN: SD250409C
Alfa Tools SD250410 43/64 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250410
MPN: SD250410
Alfa Tools SD250410C 43/64 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250410C
MPN: SD250410C
Alfa Tools SD250411 11/16 HSS ECO PRO S&D DRILL 1/2" SHANK
SKU: AT-SD250411
MPN: SD250411
Alfa Tools SD250411C 11/16 HSS ECO PRO S&D DRILL 1/2" SHANK CARDED
SKU: AT-SD250411C
MPN: SD250411C