MetalworkingFun Forum

I think I did fairly well at about $3 each for 10 with free shipping.

http://www.ebay.com/itm/330741848033?ssP...1497.l2649

Ed

Ed,

That's good $3 each,

DaveH

Hey! are administrators allowed gloat posts?

(06-02-2012, 04:10 PM)stevec Wrote: [ -> ]Hey! are administrators allowed gloat posts?

busted.

Good going Ed


Rob

Well done Ed,


Jerry.

(06-02-2012, 04:10 PM)stevec Wrote: [ -> ]Hey! are administrators allowed gloat posts?

Well...... at least he didn't use one of these:

well dun

Ed,

That's a great deal. The 1510 grade is a very hard, wear-resistant grade developed primarily for machining cast irons. It will work on most any material as long as it's smooth cutting, though the PM4 chipbreaker has a .004" (0.1mm) wide flat at the edge. That means it won't work well in stainless steel or non-ferrous that need an upsharp edge. The "2" radius of 1/32" is somewhat big for a small I.C. size screw-down, but in cast iron applications it's quite good.

According to the 2007 Valenite Turning catalog, the insert coating is medium-temp CVD process of TiCN over Al²O³ on a base of TiN. That means it likes to see some heat when working.