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 CDCK50448 #000 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50448
MPN: CDCK50448
Alfa Tools CDCK50449 #00 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50449
MPN: CDCK50449
Alfa Tools CDCK50450 #0 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50450
MPN: CDCK50450
Alfa Tools CDCK50451 #1 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50451
MPN: CDCK50451
Alfa Tools CDCK50452 #2 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50452
MPN: CDCK50452
Alfa Tools CDCK50453 #3 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50453
MPN: CDCK50453
Alfa Tools CDCK50454 #4 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50454
MPN: CDCK50454
Alfa Tools CDCK50455 #5 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50455
MPN: CDCK50455
Alfa Tools CDCK50456 #6 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50456
MPN: CDCK50456
Alfa Tools CDCK50457 #7 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50457
MPN: CDCK50457
Alfa Tools CDCK50458 #8 COBALT USA COMBINED DRILL & COUNTERSINK
SKU: AT-CDCK50458
MPN: CDCK50458