Excellent for polishing and deburring aluminum parts. However, they recently increased the price of the 1" wide 80 grit version so I am now using the 1/2 wide 80 grit version for $30.00 instead of the 129.46 for the 1" wide version. https://www.amazon.com/gp/product/B005V3XDXW/ref=oh_aui_detailpage_o06_s01?ie=UTF8&psc=1