Desktop Corner Rounder makes a finished edge by rounding corners of square-cut sheets
Layout - Rounded rectangles - adjusting the radius of the corners
Reuleaux triangle - Wikipedia
Choose Perfect Corner Radius for your Buttons.
Routing Corner Radii w/ Our 4-Pc. Template Guide Set
Desktop Corner Rounder / Puncher - 6mm Radius Cut, Furniture
Peach brand reliability with hard and smooth plastic working surface and steel cutting die 3mm radius corner cutting die included ( approx 1/8 Desk
Peach 3mm Radius Round Corner Cutter Rounder Desktop prox 1/8
CornerMate - The Hefty One Corner Rounder with 1/2 Inch Die
Corner Cutters : Bound to Impress
Corner Rounders & Corner Cutting Machines
Printfinish Desktop Manual Corner Rounding Machine with One 1/4 Die (Die Blade Punch Cutter)
R3 Radius(1/8) Replaceable Die Blade All Metal Corner Rounder
Corner Radius
Amana Professional Quality 12-PC Router Bit Set - Edge of