A solid carbide reamer is a tool used for enlarging and finishing a hole that have been drilled, bored, or cored to accurate dimensions. In order words, it completes the delicate work of finalizing a hole after the initial drilling, boring, or coring is done. All solid carbide reamers from Carbide Connection may have longitudinal flutes or grooves that may be straight or helical; cutting is done on the sides of the tool.