![Trying to install blinds, but the drill bit stops after about an inch. I think there might be metal above my window frame, but how do I tell, and what do I Trying to install blinds, but the drill bit stops after about an inch. I think there might be metal above my window frame, but how do I tell, and what do I](https://i.redd.it/4520b2ps6j331.jpg)
Trying to install blinds, but the drill bit stops after about an inch. I think there might be metal above my window frame, but how do I tell, and what do I
![Amazon.com: Easy Up & Down Pleated Window Shades, Temporary Window Blinds, Operating with Pull Cord, Easy Trimming & Installing (White, 36in x 64in, 2pcs-Pack) : Home & Kitchen Amazon.com: Easy Up & Down Pleated Window Shades, Temporary Window Blinds, Operating with Pull Cord, Easy Trimming & Installing (White, 36in x 64in, 2pcs-Pack) : Home & Kitchen](https://m.media-amazon.com/images/I/81ar678CZAL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Easy Up & Down Pleated Window Shades, Temporary Window Blinds, Operating with Pull Cord, Easy Trimming & Installing (White, 36in x 64in, 2pcs-Pack) : Home & Kitchen
![sanding - How to fix an uneven (curved) upper window box to install blinds? - Home Improvement Stack Exchange sanding - How to fix an uneven (curved) upper window box to install blinds? - Home Improvement Stack Exchange](https://i.stack.imgur.com/t7QOL.jpg)