Abstract: An apparatus defining right and left side walls, with a top web and a bottom web, each arranged parallel relative to one another and orthogonally directed between the side walls. The side walls include a series of increasing apertures, with apertures of each side wall coaxially aligned relative to one another of a like diameter. A forward edge of the top web includes a gradation gauge for indication of dowel length directed through the aligned apertures. A modification of the invention includes a groove directed through the bottom web, with a slot directed through a right side wall aligned with the groove to receive a saw blade within the groove for storage and lubrication thereof to enhance cutting during use.