AT Combined Drill & Countersinks
AT combined drill countersinks—often called drill countersink bits or combination drill & countersink tools—are designed to streamline hole preparation by drilling a pilot hole and creating a chamfer/countersink in one operation (application dependent). They’re commonly used in fabrication and maintenance work to help reduce tool changes and produce cleaner, more consistent hole edges for fasteners, rivets, and general deburring.
Alfa Tools CDTC50450 ASA #0 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50450
MPN: CDTC50450
Alfa Tools CDTC50451 3ASA # 1 CARBIDE COMBINED D RILL & COUNTERSINK
SKU: AT-CDTC50451
MPN: CDTC50451
Alfa Tools CDTC50452 ASA # 2 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50452
MPN: CDTC50452
Alfa Tools CDTC50453 ASA # 3 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50453
MPN: CDTC50453
Alfa Tools CDTC50454 ASA # 4 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50454
MPN: CDTC50454
Alfa Tools CDTC50455 ASA # 5 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50455
MPN: CDTC50455
Alfa Tools CDTC50456 ASA #6 CARBIDE COMBINED DRILL & COUNTERSINK
SKU: AT-CDTC50456
MPN: CDTC50456