The present invention aims to provide a porous resin stamp, which can repeatedly seal without supplying ink for a long period of time by beforehand soaking ink therein, and a producing method thereof. It can be made by contacting a precursor alloy including Cu, M and Al with a caustic liquid under conditions sufficient to remove the Al. A method of machining a workpiece using the combination end millingdrillingreaming cutting tool is also disclosed. An alternative embodiment provides an apparatus and a method for a Smart Pass-Through Operation which involves switching between the Simple Pass-Through and the Rate Converter. Each contact pad is sized according to a design rule defined by SRO+2*SRR\u22122X, where SRO is the solder resist opening, SRR is a solder registration for the manufacturing process, and X is a function of a thickness of the exposed sidewall of the contact pad. The compounds of formula I are muscarinic receptor antagonists.