Concealed Carry Hand Guns - - BUYER’S GUIDE -

When you get a H&M’s Black­ni­tride+ treat­ment to your firearm, you’re lit­er­ally tak­ing ad­van­tage of a space-age process. It’s not just ad­ver­tis­ing hype. H&M Metal Pro­cess­ing is the only NASA-ap­proved black­ni­tride com­pany in the U.S. Small gears in NASA satel­lites and the Mars rover have re­ceived H&M’s metal treat­ment. Those have to be so pre­cise that the pol­ish of the gear teeth has to with­stand in­spec­tion by mi­cro­scope. “When that goes up into outer space, it can’t have any oil on it,” McMillen said. “Those ni­trided parts have to roll to­gether, have the lu­bric­ity to turn. If an­other type of fin­ish chips or flakes off in space, you’d have a bil­lion-dol­lar satel­lite that’s go­ing down.” As an ex­am­ple of the dura­bil­ity Black­ni­tride+ pro­vides to metal parts, con­sider that an­other part of the com­pany’s busi­ness in­volves treat­ing parts for lo­co­mo­tive en­gines. “They have to be ro­bust enough to run in a 16-cylin­der train en­gine,” McMillen said. “We do the cylin­der lin­ers, pis­ton crowns and ar­tic­u­la­tor rods for lo­co­mo­tive en­gines and we do 180 of those a day for G.E. (Gen­eral Elec­tric). And we’ve been do­ing it ev­ery day for the last 30 years.”

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