Bosch GOP 18V-28 inconsistent oscillation

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Sector experience since
not enabled
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Other woodworking
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Hi All,

I've just gotten myself a Bosch GOP 18V-28 Multi Tool. I found the tool does not have a consistent vibration or oscillation, very apparent at 19s in my Video 1. And then there's this rattling sound as recorded in my Video 2 which appears to be coming from the opposite end of the tool.

I don't readily have another unit to compare with. Hope other GOP 18V-28 users can advice if this is the same with your units.

I have a feeling something is off with the brushless motor. 

Video 1
https://vimeo.com/605719264
Screeching sound at 4s
Oscillation power dip? at 19s
Speed 1-2

Video 2
https://vimeo.com/605713197
Rattling sound at speed 3 and higher
KP
Activity
Sector experience since
1995
Sector
Telecommunications, energy supply
Written on
You need to add a rating to your videos so those of us without a Vimeo account can watch them.

FYI, my GOP 18V-28 seemed to have a slightly inconsistent speed when I first used it (I could hear the pitch change under no load). It seems to have leveled out with a bit of use though.