MrMatuthe stock tool:
has a LOUD clicky, starts on medium, has a black clip, does not work on a keychain because the ring hits the rubber boot, will not tail stand, uses a 219b that makes 80 lumens
the MassTool: eSwitch is silent, starts on low, has a silver clip, keyring attachment is superiort, able to tail stand, uses a 219c that makes 105 lumens
the MassTool: eSwitch is silent, starts on low, has a silver clip, keyring attachment is superiort, able to tail stand, uses a 219c that makes 105 lumens