The Los Angeles Chapter of the National Tooling and Machining Association (LA/NTMA) is the center of knowledge and action for ... Southern California’s precision manufacturing community. We offer networking opportunities, management ideas, technology updates, and other exclusive membership benefits. The Los Angeles Chapter of the National Tooling and Machining Association has a rich history. Our members are part of an indispensable $40 billion industry. We foster the growth of creative and talented manufacturing professionals; we support each other in excellence and innovation, and we help train those new to the field. read more