Endmill pulling out of router

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

…and never use the red button and a single wrench, but always the two wrenches. As was already reported, the red button may fail and leave the router unusable.

unlike ER collets,

@Aiph5u

…, which clamp the bit shaft over a longer length, the Makita collet just clamps the bit on the beginning of shaft (see length of conical part on picture, it is extremely short on Makita):

Makita collet

ER collet

This would be a good justification for both tightening the Makita collet more than a ER collet and for having to loosen the Makita when not in use (strong clamping force on a small conical surface would deform steel more and earlier than on a larger surface)

Here a cleaning tool with leather strips for cleaning the collet seat inside axle