Carbide!
The business-end of the Skraper is a solid carbide bar honed on three sides and ends. All 8 edges are razor sharp and capable of taking fine shavings. And since it's carbide, the edge lasts a long time. The Skraper can be resharpened with diamond abrasives. The blade can also be removed and flipped over if desired.

Use
Glue squeeze-out. We all know that scraping glue while its still rubbery is a good technique, but oft times the glue can pull out wood fibers along with it, especially when using a card skraper to remove the glue. Here's where the Skraper shines. The 90 degree cutting angle , coupled with the thick carbide edge helps prevent grain tearing, especially when the tool is used at a skew to the grain.

Skewing the tool helps keep the grain in place while the skraper can do its job of shearing off the glue. The angled handle allows a zero degree approach, allowing space to get your fingers around the handle.

The Skraper also really shines for cleaning glue out of corners. After removing the glue, the Skraper can be used to take fine shavings from the surrounding area.

The Skraper can refine small areas while keeping them dead flat. A card skraper will hollow an area, while the Skraper will not. This is especially handy for maintaining the fit of some joints or the flatness of a surface. Holding the Skraper at a low angle and taking short strokes at a bias to the grain makes nice wispy shavings.
The Skraper is incredible on exotic oily woods like cocobolo. Holding the skraper upright with a rearward tilt (pulling the Skraper toward's your body) produces beautiful shavings. The Skraper makes dead flat scraped surfaces with no tearout.