Pros : This is fantastic to grind the small pieces of glass and also protect well big fingers. Pick the smallest glass, grip well and grind perfectly without shortening your fingers or grinding your nails Ah! Ah! Its an essential tool for all .
Other Thoughts : I use it also in carpentry when I cut cookies and grind them with my carpentry tools. Very handy.
Cons : Glass slips in jaws with little pressure, especially when trying to grind small textured pieces. Tool can only be used until grinding wheel is adjusted to new position, then the wheel surface is too low to allow the use of the tool.
Other Thoughts : Tool would be more useful if clamping jaws were closer to the bottom of the product.
Pros : I first discovered this helpful tool on the final day of a stained glass class I was taking - had I only known about it beforehand! It's lightweight, easy to use, and makes easily grinding smaller pieces a snap without GRINDING your fingertips. The rubber tips act like a soft vice and give you perfect control over the piece.
Cons : Not so great with long, narrow pieces, as the glass loses integrity when off of a solid surface. I broke a few this way.
Other Thoughts : For any of you copper foilers out there, you will love this tool! It saved my poor fingers.