Just picked up a new old stock Keller maple 14x5 shell. I cut edges using a router table (45 with slight back cut). Used a basic drum template map for hardware and had a local artist do the design. However I have one question. The drum sounds great. Just like any old maple snare. Nothing special. But I cut the snare beds using a file by hand. Is there a easier and more accurate way to do this without some kind of expensive gear??