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View Full Version : Drill bits question for hardrock miners

09-04-2012, 10:49 PM
Is there any place that one can buy drill bits used for testing. Nothing to big but maybe 1/2 inch diamond core bits to make holes in rocks? I have only found online places and they are in china or another over seas place which I will not give my CC info to. I am looking for places in Alaska which I could go to and pick up or a trusted online site in the US.

Green As Grass Prospector named Joe

09-05-2012, 04:49 AM
I have found one that I think might work for what I need to do. Also there are many other places mostly over seas and none are like this that I have seen. Any body used one of these?

09-05-2012, 03:29 PM
How are you going to get a stick of dynamite into a " hole?

09-05-2012, 08:16 PM
Thats a good question because I never use TNT before. The 41mm works well with TNT. What size is TNT anyway? Dont they come in different sizes?

09-06-2012, 09:51 AM
If you are looking to core drill for samples, I don't think you are going to get bits under 1.25in. But if you are drilling to blast the rock, you can get star, or chisel bits.

09-08-2012, 12:44 AM
Thanks for the info mtau