| 摘要 |
A novel drill bit adapter (156) includes a body portion (164), a cap portion (168), a spring-biased catch (220) and a push button actuator (230). The cap portion (168) includes a transverse aperture and cooperates with the body to define a longitudinal aperture and a catch-receiving cavity (198). The push button (230) is disposed in the transverse aperture and engages the catch (220) to move the catch in the cavity (198) relative to the longitudinal aperture in opposition to a biasing force supplied by the spring (216). The spring (216) is a wire spring that extends longitudinally from the body portion (164) into the cap portion (168) to engage the catch (220). |
