On Tuesday, June 12, 2012 06:36:40 AM andy pugh did opine: > On 10 June 2012 19:52, gene heskett <[email protected]> wrote: > > Imagine my surprise when that grade 8 bolt carved like butter, both > > with carbide inserts and with HSS tool steel, leaving a mirror-like > > finish. > > I was just sent this link, which is truly fascinating: > http://youtu.be/mRuSYQ5Npek > > It shows how bad finishes can sometimes be formed due to material > rolling under the cutting edge, and it is also fascinating how much of > the time the effective cutting edge is made of the material itself.
It also seems to confirm that the T.i.N plated tool is the better tool, at least until the plating is worn away. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> The human race is a race of cowards; and I am not only marching in that procession but carrying a banner. -- Mark Twain ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
