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AT ProBits® Multi-Step Drills

AT ProBits multi-step drills—often called step drill bits—are designed to drill and enlarge holes in thin materials using a single tool (application dependent). Step drills are commonly chosen for sheet metal, fabrication, and electrical work because they can create multiple hole diameters, help produce cleaner holes, and reduce the need to switch between multiple drill sizes. Many users also rely on step drills for controlled hole enlargement and light deburring after drilling.

Alfa Tools MB52501 A HSS PROBIT CONE DRILL

Alfa Tools MB52501 A HSS PROBIT CONE DRILL

SKU: AT-MB52501
MPN: MB52501

Save $32.31
Alfa Tools MB52501C A HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52501C A HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52501C
MPN: MB52501C

Save $34.70
Alfa Tools MB52502 B HSS PROBIT CONE DRILL

Alfa Tools MB52502 B HSS PROBIT CONE DRILL

SKU: AT-MB52502
MPN: MB52502

Save $28.76
Alfa Tools MB52502C B HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52502C B HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52502C
MPN: MB52502C

Save $31.16
Alfa Tools MB52503 C HSS PROBIT CONE DRILL

Alfa Tools MB52503 C HSS PROBIT CONE DRILL

SKU: AT-MB52503
MPN: MB52503

Save $40.95
Alfa Tools MB52503C C HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52503C C HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52503C
MPN: MB52503C

Save $43.36
Alfa Tools MB52504 D HSS PROBIT CONE DRILL

Alfa Tools MB52504 D HSS PROBIT CONE DRILL

SKU: AT-MB52504
MPN: MB52504

Save $36.17
Alfa Tools MB52504C D HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52504C D HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52504C
MPN: MB52504C

Save $38.56
Alfa Tools MB52505 E HSS PROBIT CONE DRILL

Alfa Tools MB52505 E HSS PROBIT CONE DRILL

SKU: AT-MB52505
MPN: MB52505

Save $45.55
Alfa Tools MB52505C E HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52505C E HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52505C
MPN: MB52505C

Save $47.95
Alfa Tools MB52506 F HSS PROBIT CONE DRILL

Alfa Tools MB52506 F HSS PROBIT CONE DRILL

SKU: AT-MB52506
MPN: MB52506

Save $49.08
Alfa Tools MB52506C F HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52506C F HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52506C
MPN: MB52506C

Save $51.48
Alfa Tools MB52507 G HSS PROBIT CONE DRILL

Alfa Tools MB52507 G HSS PROBIT CONE DRILL

SKU: AT-MB52507
MPN: MB52507

Save $90.49
Alfa Tools MB52508 H HSS PROBIT CONE DRILL

Alfa Tools MB52508 H HSS PROBIT CONE DRILL

SKU: AT-MB52508
MPN: MB52508

Save $28.69
Alfa Tools MB52508C H HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52508C H HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52508C
MPN: MB52508C

Save $31.08
Alfa Tools MB52511 K PROBIT CONE DRILL 3/16-7/8

Alfa Tools MB52511 K PROBIT CONE DRILL 3/16-7/8

SKU: AT-MB52511
MPN: MB52511

Save $46.88
Alfa Tools MB52511C K HSS PROBIT CONE DRILL CARDED

Alfa Tools MB52511C K HSS PROBIT CONE DRILL CARDED

SKU: AT-MB52511C
MPN: MB52511C

Save $49.28
Alfa Tools MB52513 M PROBIT CONE DRILL 1/4-1 1/8

Alfa Tools MB52513 M PROBIT CONE DRILL 1/4-1 1/8

SKU: AT-MB52513
MPN: MB52513

Save $65.39
Alfa Tools Drilling & Metal Cutting Tools mbs13

Alfa Tools MBS13 3PC MULTI STEP PROBIT DRILL SET PLASTIC CASE

SKU: AT-MBS13
MPN: MBS13

Save $113.74
Alfa Tools Drilling & Metal Cutting Tools mbs14

Alfa Tools MBS14 4PC MULTI STEP PROBIT DRILL SET PLASTIC CASE

SKU: AT-MBS14
MPN: MBS14

Save $185.54
Alfa Tools Drilling & Metal Cutting Tools mbs15

Alfa Tools MBS15 3PC MULTI STEP PROBIT DRILL SET PLASTIC CASE

SKU: AT-MBS15
MPN: MBS15

Save $134.06
Alfa Tools Drilling & Metal Cutting Tools mbs16

Alfa Tools MBS16 6PC .MULTI STEP PROBIT DRILL SET PLASTIC CASE

SKU: AT-MBS16
MPN: MBS16

Save $295.82
Alfa Tools Drilling & Metal Cutting Tools mbs17

Alfa Tools MBS17 4PC MULTI STEP PROBIT DRILL SET PLASTIC CASE

SKU: AT-MBS17
MPN: MBS17

Save $193.63
Alfa Tools MBS3 3PC . PROBIT CONE DRILL SET/POUCH

Alfa Tools MBS3 3PC . PROBIT CONE DRILL SET/POUCH

SKU: AT-MBS3
MPN: MBS3

Save $89.44