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Alan Gordon 4	12/09/2017 15:58:35
129 forum posts 13 photos	Hi Folks I have aquired a boring head with boring bars however thy have been well used and in need of sharpening, I have tried to sharpen on my bench grinder with poor results. Should I be using a different grinding wheel ?
richardandtracy	12/09/2017 16:10:14
943 forum posts 10 photos	If they are brazed carbide tips, then you'll need a green wheel. If carbide inserts, they are disposable and should be changed. If they're HSS, then you either need to get better at the correct shape (and I am NOT one to talk - I resorted to cheap carbide insert tools from China, I was that good at grinding my own) or hone and maybe polish after grinding. Regards, Richard.
Brian Sweeting	12/09/2017 16:10:25
453 forum posts 1 photos	What are the materials of the bars and the wheels, sorry can't see from here.
Alan Gordon 4	12/09/2017 18:01:02
129 forum posts 13 photos	Thanks Chaps Yes they are brazed carbide tips so it looks like i will invest in a green wheel or convert to inserts.
Andrew Tinsley	12/09/2017 19:10:21
1817 forum posts 2 photos	A green wheel will not give a good enough finish for a really good surface, you will need to hone the cutting edges to get rid of the grinding marks. Andrew.
Douglas Johnston	12/09/2017 19:51:00
814 forum posts 36 photos	A diamond wheel is ideal for touching up these carbide tips. Doug

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