Protaeus
Enlightened
After seeing Hburner's work on MSaxatilus' Surefire M4, I thought I'd get some 18650 LG 2400MAH cells and give it a go. I found a 17.75-18.25mm expanding hand reamer on ebay which was used from the UK and managed to get it for about 10 pounds including shipping to Australia. I didnt have a tap wrench so a mate and I took at it with a spanner. That took a while and we thought it was taking way too long and too much effort, so we attached the hand reamer to a hand drill and set the speed setting to the lowest and the torque setting to the highest. We also had it set on the 'impact' setting. This worked moderately well, but we found that it tended to still lock. Then we noticed the WD40. Brilliant! We sprayed down the inside of the M4 and took at it with the the reamer and it was smooth as silk. After reaching the 18.25mm, the WD40 had created a mirror finish, far smoother than the original finish. Now I can use 18650 LG 2400mah cells. My mate and I are really happy with the job!
Here are some pics to wet your appetite...
Here are some pics to wet your appetite...