Rob Cosman's IBC Mortise Chisel: 3/16 inch | RobCosman.com
Narex 12 Piece Chisel Set Containing 3 mm (1/8") 4 mm (3/16"), 6 mm (1/4"), 8 mm (5/16"), 10 mm (3/8") 12 mm (1/2"), 16 mm (5/8"), 20 mm (11/16"), 26 mm (1 1/16"), 32 mm (1 1/4"), 40 mm (1 5/8") and - Amazon.com
Diamond Point Chisel 3/16″ Cut, CD632 | Wilde Tool
Stanley 16-300 Chisel Set, 3-Piece - Set Of Stanley Chisels - Amazon.com
Mayhew Pro 10501 3/16-Inch Half Round Nose Chisel - Wood Chisels - Amazon.com