AT ProBits® Multi-Step Drills

AT Reamers are precision finishing tools designed to produce accurate hole sizes, superior surface finishes, and improved hole roundness in machining, fabrication, and industrial maintenance applications. Engineered for consistent performance, reamers refine pre-drilled or pre-bored holes to achieve tighter tolerances and more precise fits than drilling alone.


Alfa Tools EXT61289 1/4 X 6 BIT EXTENSION

Alfa Tools EXT61289 1/4 X 6 BIT EXTENSION

SKU: AT-EXT61289
MPN: EXT61289

EMAIL SALES FOR PRICING
Alfa Tools MB52501 A HSS PROBIT CONE DRILL

Alfa Tools MB52501 A HSS PROBIT CONE DRILL

SKU: AT-MB52501
MPN: MB52501

EMAIL SALES FOR PRICING
Alfa Tools MB52501C A HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52501C A HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52501C
MPN: MB52501C

EMAIL SALES FOR PRICING
Alfa Tools MB52501TN A HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52501TN A HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52501TN
MPN: MB52501TN

EMAIL SALES FOR PRICING
Alfa Tools MB52501TNC A HSS PROBIT CONE DRILL TN COATED CARDED

Alfa Tools MB52501TNC A HSS PROBIT CONE DRILL TN COATED CARDED

SKU: AT-MB52501TNC
MPN: MB52501TNC

EMAIL SALES FOR PRICING
Alfa Tools MB52502 B HSS PROBIT CONE DRILL

Alfa Tools MB52502 B HSS PROBIT CONE DRILL

SKU: AT-MB52502
MPN: MB52502

EMAIL SALES FOR PRICING
Alfa Tools MB52502C B HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52502C B HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52502C
MPN: MB52502C

EMAIL SALES FOR PRICING
Alfa Tools MB52502TN B HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52502TN B HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52502TN
MPN: MB52502TN

EMAIL SALES FOR PRICING
Alfa Tools MB52502TNC BHSS PROBIT CONE DRILL TN COATED CARDED

Alfa Tools MB52502TNC BHSS PROBIT CONE DRILL TN COATED CARDED

SKU: AT-MB52502TNC
MPN: MB52502TNC

EMAIL SALES FOR PRICING
Alfa Tools MB52503 C HSS PROBIT CONE DRILL

Alfa Tools MB52503 C HSS PROBIT CONE DRILL

SKU: AT-MB52503
MPN: MB52503

EMAIL SALES FOR PRICING
Alfa Tools MB52503C C HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52503C C HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52503C
MPN: MB52503C

EMAIL SALES FOR PRICING
Alfa Tools MB52503TN C HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52503TN C HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52503TN
MPN: MB52503TN

EMAIL SALES FOR PRICING
Alfa Tools MB52503TNC C HSS PROBIT CONE DRILL TN COATED CARDED

Alfa Tools MB52503TNC C HSS PROBIT CONE DRILL TN COATED CARDED

SKU: AT-MB52503TNC
MPN: MB52503TNC

EMAIL SALES FOR PRICING
Alfa Tools MB52504 D HSS PROBIT CONE DRILL

Alfa Tools MB52504 D HSS PROBIT CONE DRILL

SKU: AT-MB52504
MPN: MB52504

EMAIL SALES FOR PRICING
Alfa Tools MB52504C D HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52504C D HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52504C
MPN: MB52504C

EMAIL SALES FOR PRICING
Alfa Tools MB52504TN D HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52504TN D HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52504TN
MPN: MB52504TN

EMAIL SALES FOR PRICING
Alfa Tools MB52504TNC DHSS PROBIT CONE DRILL TN COATED CARDED

Alfa Tools MB52504TNC DHSS PROBIT CONE DRILL TN COATED CARDED

SKU: AT-MB52504TNC
MPN: MB52504TNC

EMAIL SALES FOR PRICING
Alfa Tools MB52505 E HSS PROBIT CONE DRILL

Alfa Tools MB52505 E HSS PROBIT CONE DRILL

SKU: AT-MB52505
MPN: MB52505

EMAIL SALES FOR PRICING
Alfa Tools MB52505C E HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52505C E HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52505C
MPN: MB52505C

EMAIL SALES FOR PRICING
Alfa Tools MB52505TN E HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52505TN E HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52505TN
MPN: MB52505TN

EMAIL SALES FOR PRICING
Alfa Tools MB52505TNC EHSS PROBIT CONE DRILL TN COATED CARDED

Alfa Tools MB52505TNC EHSS PROBIT CONE DRILL TN COATED CARDED

SKU: AT-MB52505TNC
MPN: MB52505TNC

EMAIL SALES FOR PRICING
Alfa Tools MB52506 F HSS PROBIT CONE DRILL

Alfa Tools MB52506 F HSS PROBIT CONE DRILL

SKU: AT-MB52506
MPN: MB52506

EMAIL SALES FOR PRICING
Alfa Tools MB52506C F HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52506C F HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52506C
MPN: MB52506C

EMAIL SALES FOR PRICING
Alfa Tools MB52506TN F HSS PROBIT CONE DRILL TIN COATED

Alfa Tools MB52506TN F HSS PROBIT CONE DRILL TIN COATED

SKU: AT-MB52506TN
MPN: MB52506TN

EMAIL SALES FOR PRICING