Thread: Neat Machining Video
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Old 10-10-2007, 09:50 PM
kwhizz kwhizz is offline
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Default Re: Neat Machining Video
Rc is the Abbreviation for Rockwell Hardness......60-62 Rc is the hardness of cutting Tools......Drills, Etc..Soft material is like 8-10 Rc just as an example

Ken
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