These templates are similar to our regulation sized V2 Hole Template. You will use this tool with a Spiral flush Tempalte Bit. This Template will allow you to cut your hole and round your corners with one tool. 

This Bundle Includes a 12x24 and a 16x32" sized top hole and radius corner template. Both feature a 4" hole. They are scaled down from a regulation size and the hole is in the same location. On the 12x24" size the hole scaled down to 3.5" but we make it 4" as it seems to be the standard. 

Both tools feature dowels to align the tool properly.