Ozark Nick Posted February 26, 2012 Share Posted February 26, 2012 In addition to my new leg vise, I also found one of these drill presses yesterday. It is in superb condition (as far as I can tell), and seems to work like it should. One question, the "chuck" (for lack of a better word) has a square hole with a set screw into it. Are there special drill bits I need to find? Can I modify existing bits? Or am I missing something? I've read a tiny bit about something called a "Jacob's Chuck?" Thanks! Quote Link to comment Share on other sites More sharing options...
Waylon63 Posted May 2, 2013 Share Posted May 2, 2013 Hi Nick, I'm near Tulsa Ok. the Jacobs chuck is the type of chuck you find on a regular drill, the one you use the Key to tighten. The drill bits a lot of the post drills used had a 1/2 inch shank and then stepped to the size of the hole you were going to drill i.e. 1/4, 3/8, 1/2 3/4.... get the idea. i have seen links on this site about the conversion (http://www.beautifuliron.com/thepost.htm) this link has a lot of information that should help. Quote Link to comment Share on other sites More sharing options...
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