pmailkeey
Member
Perhaps this is a good point to throw in some info from my engineering background !
When attaching needles to the pens to treat the process as precise engineering and get the pen and needle perfectly aligned before screwing it on. This will avoid damaging the part of the needle that pierces into the pen cartridge and avoid getting the thread crossed.
When attaching needles to the pens to treat the process as precise engineering and get the pen and needle perfectly aligned before screwing it on. This will avoid damaging the part of the needle that pierces into the pen cartridge and avoid getting the thread crossed.