This 60 degree mill is 55 degrees, what do the markings mean..

[woodchucker]

Am I reading something wrong. Does the 5/0 mean something that I don't understand?

 

[benmychree]

I do not think it means much of anything.

 

[JRaut]

Is it brand new?

Could have gotten re-ground at some point into a custom 55* cutter.

 

[woodchucker]

I don't understand why it measures 55degrees then. I took it for 60, and after cutting and not having it mate with the part... .... well ya know.

 

[woodchucker]

Is it brand new?

Could have gotten re-ground at some point into a custom 55* cutter.

No it's not brand new, but it doesn't appear to be re-ground, and it still measures 3/4.. but I get it, that doesn't mean much.

 

[JRaut]

Did you check behind Door #2 to make sure that the mating part is actually 60* and not 65* for some reason?

 

[woodchucker]

Did you check behind Door #2 to make sure that the mating part is actually 60* and not 65* for some reason?

yes, then I checked the tool with a protractor and found 60 is really the new 55.

 

[JRaut]

Weird, I'd toss that cutter in your scrap bin before you do it again 5 years down the road.

 

[woodchucker]

hell no... it's a perfectly good 55 degree cutter. a little magic marker to black out the 60 degree
and then mark it 55.. when /if it gets used it will wear off, but I can redo it.

I'm too cheap to throw away things like that.
Even if I never need a 55.

 

[woodchucker]

after thinking about it, I might make the mating part 55 to match the part.
We'll see... I gotta think bout it.