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Recognizing High Speed Steel???

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Forum topic by ShannonRogers posted 09-21-2008 05:26 AM 1505 views 0 times favorited 3 replies Add to Favorites Watch
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ShannonRogers

540 posts in 5247 days


09-21-2008 05:26 AM

Topic tags/keywords: hss turning tools carbon steel

Got an interesting question lately provoked by one of my turning podcasts. I have been digging around on the Internet and while I have learned a great deal about high speed steel and it’s many alloys, still not answer. When in doubt, see what the jocks can tell you!

I have a listener who just bought a used lathe. It came with several tools of differnt makes. His question to me is how do you tell if a tool is high speed steel or if it is carbon steel?

Most of the research I have done says that HSS is marked on the tool, but as I understand it this gentleman is dealing with an older set of tools.

-- The Hand Tool School is Open for Business! Check out my blog and podcast "The Renaissance Woodworker" at www.renaissancewoodworker.com


3 replies so far

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scottb

3648 posts in 5786 days


#1 posted 09-21-2008 05:39 AM

older tools probably aren’t HSS, methinks.

-- I am always doing what I cannot do yet, in order to learn how to do it. - Van Gogh -- http://blanchardcreative.etsy.com -- http://snbcreative.wordpress.com/

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Quixote

206 posts in 5097 days


#2 posted 09-21-2008 06:25 AM

Check on a grinding wheel where you can observe the stream of sparks for about a foot.

High carbon steel will throw aa stream of sparks that will explode into more sparks several inches out. Similiar to a sparkler, or the branches of a tree.

High Speed Steel will throw a long stream of sparks that don’t branch.

Q

-- I don't make sawdust...I produce vast quantities of "Micro Mulch."

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ShannonRogers

540 posts in 5247 days


#3 posted 09-21-2008 05:09 PM

Q,

Thanks I knew there was something like this out there. Your tip rings a bell with me too. I think I may have seen that done on a video somewhere in my travels. Thanks a lot!

-- The Hand Tool School is Open for Business! Check out my blog and podcast "The Renaissance Woodworker" at www.renaissancewoodworker.com

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