The Simpson Strong-Tie Quik Drive extension connects to the compatible attachments to meet the needs of a variety of applications including drywall to subfloor installation. The QQDEXTG2-16 extension is the 16" (short) size for the G2 Series. It can be utilized for stand-up-and-drive fastening. This extension allows the user to install fasteners in an ergonomic position, resulting in less physical stress on the jobsite.