Each W.F.T. is made to trim a specific cartridge or cartridge family such as a 308 trimmer will also trim 7mm-08, 260 Rem., 243 Win.. Unlike other case trimmers the W.F.T. does not use pilots, the case is supported by the shoulder and body of the case. The WFT-I was developed as a precision tool built to last a lifetime (or more) and uses a source of power most people already own a cordless or electric drill. Once adjusted to the users preference, its simply a matter of chucking it up in a drill and feeding cases in by hand a pace of 10 cases per minute is pretty easy to maintain. The razor sharp high-speed cutters and the sealed ball bearing we incorporate into our trimmer produce an extremely smooth cut. In most cases it will only be necessary to slightly chamfer the inner edge of the case mouth. Most drill chucks have a little wobble to them, but with a little experimentation you can usually find a sweet spot were the WFT runs perfectly true. The less wobble you have the higher r.p.m. you can trim at.
Here is link to LGW Information video: http://www.youtube.com/watch?v=_KNOLN0ByH8#t=43
