trowel tips
if you buy a trowel you will need to shape it to use it
the corners on your trowel will usually be square even if you buy a pre worn or permashape trowel
so you can file it round or carefully use a grinding wheel
see the difference in the 2 trowels in the picture
the trowel on the right has been filed to shape
now sharpen all the edges of the trowel with your file
finish the treatment by sharpening the edges along an oil stone or emery paper
to gain the shape slightly concaved just press the edges of the blade down onto a board
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