When it has been desired to cut a series of holes in a picture mat, this has generally required a laborious and time consuming manual effort. Such efforts are prone to miscalculations or mismarkings which can ruin the job.
In order to cut ovals in picture mats, there has been disclosed in the prior art an Oval-Master apparatus manufactured by C&H Manfacturing of Jackson, Miss. This device was adjustable to cut ovals of various sizes and of ovalities including plane circles as well. Using a suitable movable guide on a base, the picture mat was suitably located beneath a center of the cutting apparatus. The cutting apparatus was mounted to a platform which was lowerable into position to engage the mat during cutting. While this apparatus was advantageous for cutting ovals and circles in mats, in order to cut a plurality of such ovals and circles in a mat, the mat had to be continually repositioned at precise locations determined by x and y scales on the base.