http://www.popularwoodworking.com/article/what-is-an-oilstone-2 Woodworking advice, woodworking plans, woodworking projects and woodworking blogs Tue, 21 May 2013 11:37:52 +0000 hourly 1 http://wordpress.org/?v=3.5.1 http://www.popularwoodworking.com/article/what-is-an-oilstone-2/comment-page-1#comment-21410 willcon Tue, 25 Oct 2011 04:55:20 +0000 http://www.popularwoodworking.com/?p=110111#comment-21410 If the liquid has a high surface tension, it won’t penetrate into the openings, but stay on the surface (thru surface tension). You need something that will flow into the microscopic openings to flush the debris that is stuck at the surface of the opening.

]]> http://www.popularwoodworking.com/article/what-is-an-oilstone-2/comment-page-1#comment-21317 Brett Fri, 21 Oct 2011 14:46:01 +0000 http://www.popularwoodworking.com/?p=110111#comment-21317 If surface tension is the mechanism by which bits of swarf are lifted out of the pores of the stone, why do we want to use a cutting fluid with low surface tension? Wouldn’t a high surface-tension fluid work better?

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