Several decades ago I made three workbench drawers using my new dovetail template. I recently blew the cob webs from the template, found my instructions and attempted to make some new dovetails for a piece of furniture. The manual said use a 7/16" pilot bushing with a depth of cut of 15/32". Unfortunately, with the dovetail bit I had, the smallest depth of cut is about 1/2" before the bit interferes with the ID of the pilot bushing. I (approximately) measured the angle of the (decades old) dovetails to be 11.8 degrees; they were made with Craftsman bit 25531 with no angle specified. My current bit was measured to be 12.8 degrees. Since 14 degrees is a common dovetail bit, perhaps 14 degrees is the correct angle; the bit is Bosch 85240. In the attached photo, the Craftsman bit has the longer shaft. You can see that the waist of the Craftsman bit is smaller than the Bosch bit. Any suggestions on a work around using currently available router bits would be appreciated.
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