Why can't I drill into my window frame? My walls are concrete block, but it seems like I hit steel about a 1/2 inch in. I am using a cobalt bit. -
![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://preview.redd.it/4520b2ps6j331.jpg?width=640&crop=smart&auto=webp&s=f27f701f3127f6c80c372ac1572c78ba0cb7d26a)
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
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200 X Metal Window Frame Anchor Fixing with Screw M10 X 152Mm - Hardware Nut And Bolt Sets - Amazon.com
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AVID POWER Drill Bit Set, High Speed Steel Titanium Drill and Screwdriver Bit Set with Case for Metal, Wood and Masonry, 100 Pieces - Amazon.com
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