Q: What screw sizes do these countersink bits fit?
They're sized for #4, #5, #6, #8 and #10 screws, with matching drill and counterbore sizes for each.
50J0420 - Set of 5 Countersinks
Screw Size:
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These two-flute, countersink/counterbore 1/4" hex-shank bits have standard twist drills. A set screw holds the drill at any projection. Counterbore size is 3/8", except for the #10, which is 1/2".
Sold individually, or as a set of five. Hex key included. Screw and drill sizes are listed.
Made in USA.
They're sized for #4, #5, #6, #8 and #10 screws, with matching drill and counterbore sizes for each.
Yes, a set screw holds the twist drill at any projection, so you can set the drill to stop at the screw depth you want.
Buy the set of five if you work with a range of screw sizes; a single countersink drill bit is enough if you consistently use just one screw size.
Yes, the set of five includes a hex key for adjusting the set screws.
| Materials | Steel |
| Dimensions | 1/4" hex shank; counterbore 3/8" (for #4, #5, #6, #8) or 1/2" (for #10) |
| Compatibility | Fits 1/4" hex-shank drivers and chucks |
| Includes | Countersink drill bit; hex key (set only) |
| Package Quantity | 1 item or set of 5 |
| Country of Origin | USA |
| Warranty | Lee Valley Satisfaction Guarantee |
Options:
Screw Size
Variations:
Hex-Shank Countersinks
These two-flute, countersink/counterbore 1/4" hex-shank bits have standard twist drills. A set screw holds the drill at any projection. Counterbore size is 3/8", except for the #10, which is 1/2".
Sold individually, or as a set of five. Hex key included. Screw and drill sizes are listed.
Made in USA.
Choose an option to view item availability.
Choose an option to view item availability.
Choose an option to view item availability.
