This is not a comb to remove glue from your hair.
Made of Zinc they do not rust and are easy to clean up. The combs are 2 1/2 inches by 4 inches with 6 notches per inch. The notched side is to get a uniform amount of glue on the surface and the smooth sides can be used for insuring the joints are properly ‘wet’. Works with hot hide glue or liquid hide glue.
I use this for most joints including veneer and substrate, especially when hammer veneering to keep from making a mess with excessive glue. Of course you can make your own from a variety of thin materials.