Rob Cosman's IBC 17-Degree Chisel: 1/2 inch

Rob Cosman IBC 17-Degree Chisel: 1/4 inch

Dovetails By Hand - Chiseling Tips & Tricks

Rob Cosman IBC 17-Degree Chisel: 1/4 inch

chisels

Rob Cosmans IBC Mortise Chisel: 1/2 inch

Rob Cosman's IBC 17-Degree Chisel: 1/2 inch

Rob Cosman's IBC Bench Chisel - 1/2 inch

Rob Cosman's IBC Bench Chisel - 1/2 inch

Cosmanized Half-Blind Chisels: WoodRiver 5/8 Inch

Rob Cosman's IBC Mortise Chisel: 3/8 inch

Hand Tool Workshop Stumpy Nubs Woodworking Journal

Rob Cosman Ultimate Chisel Roll

Rob Cosmans IBC Mortise Chisel: 1/2 inch