I have a simple RULE.? bite me ounce and I give you a good hard slap.!!. . . Bite me twice and I knock you in to next foookin month..!!

Dump the rubbish and buy a decent spindle like Elite if it's so important to keep continuity. Even the cheap Chinese water cooled spindles are much better than Kress routers and they will accept greater range of cutters with correct collets. They are cheap enough to buy a spare to maintain continuity.