made by Blackhawk possibly. Sure looks like it.
Edit, I found a post that says it was KAL
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I saw an older thread about it that confirms it is KAL
Also, I found this from the 2009 KAL website:
KAL Professional Hand Tools /Pro America Premium Tools offer a wide selection of high quality premium hand tools. KAL Tools has been manufacturing tools and doing business for over 50 years.