SZ-10-21MM Apex Brand 21mm Socket Head Insert, Bit 5/8” Hex Drive are manufactured using a proprietary steel and heat treat process that yields greater strength and a longer bit life. The cutting-edge machining process used to manufacture SZ-10-21MM Apex Brand 21mm Socket Head Insert, Bit 5/8” Hex Drive results in tighter tolerances, superior product consistency and a better and more consistent fit to fasteners leading to better torque transfer.

SZ-10-21MM Apex Brand 21mm Socket Head Insert, Bit 5/8” Hex Drive are recognized as the industry leader in screwdriver tooling throughout the aviation industry as well as automotive, heavy industry or anywhere quality tooling products are required. If you have invested money in quality tools, you need to know that your screwdriver bits will deliver the performance you require of them. Apex manufactures bits for the aerospace, automotive and other industries where reliability is key. Day in and day out, youll find SZ-10-21MM Apex Brand 21mm Socket Head Insert, Bit 5/8” Hex Drive hard at work in some of the worlds busiest manufacturing facilities.