I've got a few mags I need to drill two 3/8 holes in. I tried a cobalt bit from Home Depot and a stepper bit from Harbor Freight as well as a Titanium bit I had. After at least 10 minutes under each bit it looks like the only thing I managed to do was remove the coating. Any guidance?
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Magazine Drilling
- Thread starter MaconGuns
- Start date
You need to support the inside with a sacrificial piece. Wood, plastic or anything that you don't care about that can support the side you're drilling from the inside.
Yes first thing always start with a much smaller bit. Second drill on a low speed second step your bit size up one at a time. Make sure you use lubricant while drilling said holes
AS others have stated, support the inside and use cutting fluid or lightweight oil to help carry away the drill cuttings.
Also just a heads up. I can tell by the pic you have posted that the bits you attempted to drill with are completely shot, throw them in the trash and start fresh
2 bits were NIB if you see rough edges I took a round dremel bit to try and rough up the metal in hopes of giving the bits more bite. I see almost 0 metal flakes.
I took one cobalt bit back and picked up these (pic incoming) that seem to work just as poorly. I am not putting heavy pressure against the mag in fear of bending it so I will try something inside to support it.
When the drill breaks through it will probably catch and bend the magazine. I would use a stone on the end of a dremel.
