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Author Topic: Eachine Chinese M90 Reduced Governor Springs - Slower running and reduced hits  (Read 1157 times)

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Re: Eachine Chinese M90 Reduced Governor Springs - Slower running and reduced hits
« Reply #15 on: January 20, 2021, 03:38:00 am »
"It's just stainless" .....what i thought too, but after trying 5 new various size HSS drill bits without a dent or single scarf curl result, it's been Undrillum so far, but eventually if I gotta use a laser !!.... tom
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