Rob Cosman's IBC Half-Blind Chisel: 5/8 inch hideNBIS cleaner cut

cleaner cut

Works best for marking out cuts between 1/4 inch to 5/8 inch wide

Original ROBERTSON® screwdriver

Determined to design a better mortise chisel

Each individual wood-hinge drill jig includes one dowel jig

Rob Cosman's IBC Half-Blind Chisel: 5/8 inch hideNBIS cleaner cutIf you have ever cut a half blind dovetail then you know how challenging cleaning out the pin socket is, especially in the corners. Not happy with the skew and fishtail chisels available, I designed and made my own half blind chisel and they work great! These chisels are made from our Rob Cosman IBC 5 8 inch bevel edge chisels with custom fit cherry handles. Has a 13 16 inch cutting depth. Dovetail shape makes accessing the back corners of the half