carlmorrell
Member
Apologies, I know this has been discussed before, I did look at the old threads.
I have some Mammoth. Got it a few years ago. It's stabilized.
I tried working with it a few years ago, and it was a disaster. I ignored what advice I could find. Started with the target drill size (10.5 & 12.5), using twist drills wet.
Now I am mentally ready to try it again.
Question 1: wet or dry? (I think dry is the answer)
Question 2: What type of drill?
Question 3: What speed?
Considering what type of drill:
I have a drill index and a Drill Doctor. Should I progress through drill sizes, starting with 1/4" ? Masonry drills, the ones that look like spears some are carbide?
Diamond coated?
I did glue wood around the blank to add mechanical stability.
Thanks for any advice, opinion.
I have some Mammoth. Got it a few years ago. It's stabilized.
I tried working with it a few years ago, and it was a disaster. I ignored what advice I could find. Started with the target drill size (10.5 & 12.5), using twist drills wet.
Now I am mentally ready to try it again.
Question 1: wet or dry? (I think dry is the answer)
Question 2: What type of drill?
Question 3: What speed?
Considering what type of drill:
I have a drill index and a Drill Doctor. Should I progress through drill sizes, starting with 1/4" ? Masonry drills, the ones that look like spears some are carbide?
Diamond coated?
I did glue wood around the blank to add mechanical stability.
Thanks for any advice, opinion.