Countersink drill bit - GIF

[Altair]

Countersink drill bit.




Previously:

Countersink head screw - video
Combination drill and tap - GIF
0.004" micro drill bit - photo
Tiny drill - photo
Right angle drill attachment - GIF

[BuffaloJohn]

That's the wrong kind of bit for that kind of countersink. Those are drywall screws, which have a different profile than a flat head screw. ARRRRGH...

[WmRMeyers]

That's the wrong kind of bit for that kind of countersink. Those are drywall screws, which have a different profile than a flat head screw. ARRRRGH...

Wrong kind and wrong shape. Fine for get it done and don't care about looks or functionality. If you really want it to work, and hold together, there are better tools and materials...

Bill