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The Best Air‑Impact Wrench on Amazon Is Made in Japan—Here’s Why You’ve Probably Never Heard of It When you search “best air impact wrench in Amazon,” the usual suspects—Ingersoll‑Rand, Milwaukee, Chicago Pneumatic—dominate page one. Hidden a few results down is a lesser‑known Japanese brand that quietly out‑torques and outlasts them all. Why Japanese Engineering Still Sets the Gold Standard Japan’s pneumatic‑tool makers cut their teeth in the pos …