Abstract: A novel drill bit adapter includes a body portion, a cap portion, a spring-biased catch and a push button actuator. The cap portion includes a transverse aperture and cooperates with the body to define a longitudinal aperture and a catch-receiving cavity. The push button is disposed in the transverse aperture and engages the catch to move the catch in the cavity relative to the longitudinal aperture in opposition to a biasing force supplied by the spring. The spring is a wire spring that extends longitudinally from the body portion into the cap portion to engage the catch.

Abstract: A novel drill bit adapter includes a body portion, a cap portion, a spring-biased catch and a push button actuator. The cap portion includes a transverse aperture and cooperates with the body to define a longitudinal aperture and a catch-receiving cavity. The push button is disposed in the transverse aperture and engages the catch to move the catch in the cavity relative to the longitudinal aperture in opposition to a biasing force supplied by the spring. The spring is a wire spring that extends longitudinally from the body portion into the cap portion to engage the catch.

Abstract: An installation jig includes a pair of jaws and a latch guide coupled together by an adjusting mechanism. The jig includes a pair of backset spacers mounted to the latch guide rotational movement between a first backset position and a second backset position. A detent mechanism maintains each backset spacer in a selected backset position and, when combined with the rotational movement, provides a tool-free backset operation. The jig also includes a pair of removable in-line arms to provide the capability to perform a standard door prep on metal and wood doors. In addition, a novel drill bit adapter is disclosed.