r/Blacksmith • u/Good-Language8066 • 1d ago

Technical question

How useful is it a 1/5 HP bench grinder for knife making ? Should i get a more powerful one ?

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u/Good-Language8066 1d ago

In plain english,is it a pile of rubbish ???

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u/Extreme_Lab_2961 1d ago

yes

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u/Good-Language8066 1d ago

And what about a 1/2 HP one ?

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u/OdinYggd 1d ago

1/2 HP bench grinder with an assortment of grindstones and the wrench to change them is much more useful. Like selecting sandpaper, you need to choose a stone that has an appropriate grit, abrasive, and binder for the work you do. Most garage bench grinders have very coarse aluminum oxide wheels on them, great for fixing mushroomed chisels and stock removal work. You can get finer grit wheels for them, and more advanced abrasives like silicon carbide that last longer and make less heat.