About OKMAongratulations! You have found the best tools for any job. We are Guangzhou OKMA Hardware & Tools Co. Ltd, manufacturers of high quality industrial screwdriver bits ,Nut setters ,bits holder ,Hex Wrench Allen Key and bit tools set.Our screwdriver bits are made from only the finest materials which imported from Japan and Taiwan with exacting tolerances and designed to withstand constant use under industrial conditions. OKMA products have consistently met strict quality requirements as professional tools.Years of research, product development, and high traceable standards have created a company that is a leader in production,price, quality, and delivery. We believe our mission is to develop new products and bring them to market faster than other companies.let OKMA be your partner in solving any needs that may arise.OKMA customer service is more than a slogan...It's a way of life!