| 摘要 |
<p>This drill guide is made up of the following components: a main body (1) with a flat base and a through hole for guiding the movement of the drill bit; interchangeable drilling heads (2) for guiding drill bits of different diameters, designed to be optionally attached and that exactly fit onto the housing (11) defined according to the size of the through hole of the main body (1) - the aforementioned interchangeable drilling heads (2) have inside apertures (21) of different diameters on each drilling head (2), which are specifically designed to guide drill bits of different diameters; the means for positioning the attachment of the drilling head (2) in use in a set position inside the housing (11); and the means of retaining any of the interchangeable drilling heads (2) inside the housing (11).</p> |
