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sharpening cutters

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Rich2502	14/06/2012 20:02:54
83 forum posts 3 photos	How would i sharpen some valve seat cutters i have, they are probably HSS. I'm thinking stone them ? Or could i send them off to be done properly ?
Gordon W	15/06/2012 09:59:11
2011 forum posts	Depends on what sort of valve I suppose, if for full size car engine I would hand stone the cutting faces and try it, sometimes works. Probably cheaper to buy a new one than have it ground
pierre ehly 2	15/06/2012 11:23:23
25 forum posts 3 photos	Hi, If the cutters are not half destroyed, stonning is possible.( not free hand) But keeping the right/good angle is Important (for matching with valve) You have to built a fixture like a " watchmaker-filing-guide" , the rollers will guiding your stone flat. have a sunny WE pierre
Russell Eberhardt	15/06/2012 15:37:02
2785 forum posts 87 photos	If you stone it on the front edge rather than the top of the teeth there is no dager of loosing the correct angle and you should be able to do it by hand if it is not too bad. Russell.

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