NC-EX-372 Apex No Mar Extension feature durable construction and a quality design that ensures a long service life.

NC-EX-372 Apex No Mar Extension have hex tolerances that are on average 48% tighter than DIN and 35% tighter than ANSI requirements. All Apex drive extensions have the tightest tolerances for straightness and concentricity in the industry.

High strength fasteners in demanding situations, like those found in the automotive and aviation industries, often require the use of an impact wrench or impact driver to deliver the amount of torque required to tighten or loosen them.