I picked this sprue cutter up at the Zoukei-Mura stand at last year's UK Nationals. It claimed the ultra-narrow jaws could slip between the sprue runner and part, thus avoiding damage while cutting. Being someone that has this problem a lot, I thought I'd give it a try.
qr7Vvb[/url]Pro Zetsu-01 by N. T. Izumi, on Flickr:600:0]
pLFXZd[/url]Pro Zetsu-02 by N. T. Izumi, on Flickr:600:0]
qHBMbA[/url]Pro Zetsu-03 by N. T. Izumi, on Flickr:600:0]
qHFToF[/url]Pro Zetsu-04 by N. T. Izumi, on Flickr:600:0]
Ordinary cutters sometimes cannot fit between the sprue runner and part, resulting in scrape damage. Some kits also have triangular cross section gates, which cause the cutter to slide towards the part, again resulting in damage. This is a Xuron cutter, my previous first line weapon of choice.
pLV1HT[/url]Pro Zetsu-05 by N. T. Izumi, on Flickr:600:0]
Note the significantly narrower jaws of the Pro-Zetsu, and how it easily fits between the sprue runner and part. Unlike my other cutters, the super skinny jaws of the Pro-Zetsu do not slip when cutting triangular section gates.
qHBKBy[/url]Pro Zetsu-06 by N. T. Izumi, on Flickr:600:0]
The tool does work as advertised. One small minus is that the jaws sometimes don't meet perfectly, thus cutting through only 99% of the gate. Maybe it is due to the slenderness of the jaws, I don't know. It's not a big deal though, and I have tried it on several different manufacturers' kits and got excellent results every time.
The real downside is that I cannot find this tool for sale on line, so for now no linkie. I am sure Zoukei Mura or their parent company Volks will list this tool shortly. It is expensive at 3,300 Yen (about $28 USD), but I feel it is worth it.