I have used many sprue cutters from a lot of different companies, all with different designs, for many years, and this is the first time I have tried this design. I was a little skeptical at first, but these have turned out to be quite nice.
The tweezer design is nice and easy to hold. The ergonomic design makes them very user-friendly. I love the way the head is shaped, the extension of the cutting head making it easy to fit into tight spots. The cutting heads are very sharp, so beware.
As for using, just put the head against the part you want to cut off and squeeze. You get a nice clean cut with very little cleanup afterwards. This works great for small parts. When it comes to the larger ones, you really have to squeeze, and I mean squeeze, hard. I had to resort to my other cutters for these.
There is another problem I found, and this has to deal with what I call the "Boing Effect". When you squeeze and the part is released from the sprue, you better have hold of it because it will go "Boing" and travel to the world of lost parts. I learned the hard way and the missing parts are still on the loose.
All in all, I would recommend this tool highly. Great for small and fragile parts. Many thanks go out to IPMS USA for giving me to opportunity to review this tool and to UMM-USA for providing the sprue cutter for us to review.