Quick-Change Combination Countersinking Drill and Screwdriver Bit Sets
Fasten differently sized screws with these sets. They save you the effort of switching three separate bits in and out of a power tool, instead letting you flip between a countersinking drill and a screwdriver bit with a single hand. You can also attach your own countersinking drills and screwdriver bits as long as they have a 1/4” hex shank.
Countersinking drills have an 82° angle, allowing inch-sized flat- and oval-head screws to sit flush with the surface.
| No. of Pieces | Includes | Countersink Angle  | Countersink Body Dia. | No. of Countersink Flutes | Adapter Hex Shank Size | For Use On | Each | |
Black-Oxide High-Speed Steel Countersink | ||||||||
|---|---|---|---|---|---|---|---|---|
| 11 | 1 Drill-Bit Countersink for 3/32" Drill Bit 1 Drill-Bit Countersink for 7/64" Drill Bit 1 Drill Bit (3/32" Drill Bit Size) 2 Drill Bits (7/64" Drill Bit Size) 1 Phillips No. 1 Screwdriver Bit (1" O'all Lg.) 2 Phillips No. 2 Screwdriver Bits (1" O'all Lg.) 1 Reversible Shaft 1 Adapter 1 Hex L-Key | 82° | 3/8" | 4 | 5/16" | Aluminum, Fiberglass, Plastic, Wood | 0000000 | 000000 |
Quick-Change Combination Countersinking Drill and Screwdriver Bits
Drill, countersink, and drive screws without switching three separate bits in and out of your power tool. With a single hand, flip between drilling countersunk holes and driving screws. The countersinking drill and screwdriver bit are secured with set screws, so you can switch them out for any bits with a 1/4” hex shank.
The countersinking drill has an 82° angle, allowing inch-sized flat- and oval-head screws to sit flush with the surface.
For technical drawings and 3-D models, click on a part number.
Combination Countersinking Drill and Screwdriver Bits | Replacement Drill Bits | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | Drill Bit Size | Countersink Body Dia. | Max. Hole Drilling Dp. | Countersink Angle | Screwdriver Bit Size | For Drive Style | Adapter Hex Shank Size | Adapter Lg. | For Use On | Each | Each | ||
Black-Oxide High-Speed Steel Countersink | |||||||||||||
4 Countersink Flutes | |||||||||||||
| No. 8 | 7/64" | 3/8" | 2" | 82° | No. 2 | Phillips | 5/16" | 3 3/4" | Aluminum, Fiberglass, Plastic, Wood | 0000000 | 000000 | 0000000 | 00000 |
| No. 10 | 1/8" | 3/8" | 2 1/4" | 82° | No. 2 | Phillips | 5/16" | 3 3/4" | Aluminum, Fiberglass, Plastic, Wood | 0000000 | 00000 | 0000000 | 0000 |