Shortly after we released our Moxon vise we began to get requests for a longer pair of acme screws to increase the capacity of the vise. At first, we hesitated. Why? Because you don't need them. We designed the vise with sufficient capacity (and then some) to accomplish its intended use. If you'd like to read more behind the reasoning, see this.
But we're suckers for sweet talk. We had a few requests for longer screws, so we decided to offer them. But the special requests have gotten out of hand. Even though we've stated pretty plainly on our ordering page (sold as an accessory only), we're answering numerous emails everyday asking for Moxon vises with 12" screws only, with both 12" and 8" and requests for an extra set of hex nuts to get some extra use out of the original 8" screw.
So here's the deal. We're discontinuing the 12" screws. Yes, its partly the crazy requests thing (call it a pet peeve), but much more importantly its because offering the 12" screws is misleading. We know that seeing the 12" screws on the ordering page makes one think "gee, they must offer those for a reason, I should have those too". But its not true. You don't need them. Period. They bring nothing to the party that the stock screws don't already bring. We want everyone to be as excited about getting their Moxon vise as we are (and I personally have used the heck out of mine this week, cutting almost 100 dovetails in 3/4" beech--I would have been in pain without it.) The Moxon vise will be 100% completely awesome and wonderful as-is. Promise. If you don't believe me, listen to Chris Schwarz, who recently built his Benchcrafted Moxon (and Chris didn't order the 12" screws).
"This tiny company in Iowa makes the best wagon/tail vise I’ve ever used and the best leg vise I’ve ever used. Now they make the best double-screw vise I’ve ever used. They make three vises, and all of them are 100 percent crazy over-the-top winners." - The Chris Schwarz Blog