Bush = hack/garage/backyard whatever term you chose.
I have used a drill press before to bore a Surefire 6P , used body that I was not too worried about. It was much easier than I imagined and results much better, a rare thing.
So I felt confident to do a brand new Z2, here's my method:
All the parts required.
Big drill bit with some 80 grit wet n dry taped to it. Also some 120 grit emery(just what I had at hand) I did not use the piece of cardboard - bad idea , not flexible enough.
Trim the wet n dry until you can get it to fit inside the body. Then insert some plain paper to build up the diameter so you can just manage to get the drill into the body.Give some twists by hand otherwise it will stall the drill or you won't be able to keep a grip.
Onto the drill press.
After maybe 1 minute of drilling an 18650 now partially fits.
I use an old DLG brand 18650 - it's close to same diameter as IMR cells I plan to use, saves damaging heatshrink on a good cell.
Switch to the 120 emery now, about 5 mins work (30 secs drilling , dunk in water to cool , etc) and the 18650 now just fits.
Another quick go with the 120 emery then put some 800 grit wet n dry to finish off. Probably a minute or so.
Remove the electrical tape and the goo it leaves behind , refit orings , lube , fit nailbender MC-E dropin and all done!
Then remove head and clean the bucket load of dust out of it
I have used a drill press before to bore a Surefire 6P , used body that I was not too worried about. It was much easier than I imagined and results much better, a rare thing.
So I felt confident to do a brand new Z2, here's my method:
All the parts required.
Big drill bit with some 80 grit wet n dry taped to it. Also some 120 grit emery(just what I had at hand) I did not use the piece of cardboard - bad idea , not flexible enough.
Trim the wet n dry until you can get it to fit inside the body. Then insert some plain paper to build up the diameter so you can just manage to get the drill into the body.Give some twists by hand otherwise it will stall the drill or you won't be able to keep a grip.
Onto the drill press.
After maybe 1 minute of drilling an 18650 now partially fits.
I use an old DLG brand 18650 - it's close to same diameter as IMR cells I plan to use, saves damaging heatshrink on a good cell.
Switch to the 120 emery now, about 5 mins work (30 secs drilling , dunk in water to cool , etc) and the 18650 now just fits.
Another quick go with the 120 emery then put some 800 grit wet n dry to finish off. Probably a minute or so.
Remove the electrical tape and the goo it leaves behind , refit orings , lube , fit nailbender MC-E dropin and all done!
Then remove head and clean the bucket load of dust out of it
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:twothumbs
