This key is another scrap box variety, now having run down my store of brassy bits and pieces this one is made out of what's left, I've always had a leaning towards fingertip keys like the American speed key but they are very lightweight, I've often wondered about a real heavy version and this is going to be it. The block base was left over from a previous redesign job and the bearings are big sealed 22mm dia, the main body is a shaped block with the two main arms sealed in the front high and the rear low, the front contact block is a shaped T section, with a huge 4.5cm  lollypop knob There is a LOT of brass in this key already it weighs just under 800g.  Here it is nearly complete under test. With an arm length of 215mm its a long key.. First tests confirm it is a very nice action with a precision big key feel to it, this is without doubt one of the best action keys I've made so far, I intend to make another one later after I have found the secret of why this particular is so good :)