Recent content by Mordecai

I'm trying to drill stainless steel too! But it's deviating 1mm in 16". I wanted to improve the result and I heard that D-bit does the trick.

hadn't considered on building the CF rod. you are an angel. would it need to cure in an autoclave? say no, please! To unite in the bit? What glue would you use? Loctite?

Hi my friend Rich, Look at my gundrill rod project. What a beautiful thing. What are the chances of this failing miserably? haha.

Hi David, that gundrill project you shared on the Forum was in another thread of mine. I disturb, I'm like that. Forgive me. By the way, I know very well whose project it is. From Howe. From the book "Modern Gunsmith, Howe". I have it, both volumes. I read every day. I have a ton of prints...

I very much appreciate your care in formulating your answer and saying that you don't want to discourage me. I really appreciate it. But I never give up and I never give up. I love mechanics, I really do and despite having followed another professional path, every single day I'm on the net...

Thank you for the advice. But I think a twist drill in a 16" deep hole would cause a deflection that wouldn't be repaired by one reamer. I figure I'd have to drill a much smaller hole and use another two or three reamers to get a straight, polished result. Furthermore, what I was really...

Hello my friends, i got some drawings of gundrills and d bits and i'm thinking about soldering a shank to cooling the bit and expel the chips. Then questions popped into my mind: could you use a steel capillary tube? if the answer to the above question was yes, what diameter of the hole would be...

Thx

thanks for your reply. did you start the hole with the D bit or did you use a propeller drill and then use the D bit to reaming? Do you believe I could drill a hole triple the depth you did, ie 360mm?

thanks friend for your reply. May God enlighten you! Do you have any literature that you can point me to, that addresses the topic of deep holes with D bit. Or do you have a drawing?

Hello my friends, i would like to know more about the D bits and can anyone help me? I need to drill a long straight and concentric 16" hole and the best way, as you may already know, is the famous gun drill. however, I was looking for a cheaper alternative to carry out the process (many will...

hi Richard, how are you? thanks for your reply! could you answer me some questions? What was the concentric accuracy of the holes you made with the D bit Drill? Do you have any drawings of the drills you used? Do you have any contacts we can correspond with? cheers!

Hello Blogwitch, how are you? although this topic is old, it is relevant to what I'm looking for and I hope it's active. read on wiki: "AD bit cutter is a specialty bit in the shape of a "D" when looking from above. Often used to make precision holes using a lathe. This type of drill was first...