The straight flute carbide tipped screw-on cutters are designed with hex bodies. The hex body assists in screwing the cutters on and off the arbor.

The cutting lengths of the straight flute cutters are varied from size to size. Sizes from 1/8" to 3/16" have a 3/8" cutting length. Sizes from 6mm thru ¼" have a ½" cutting length. Sizes from 9/32" thru 3/8" The part number reflects the decimal equivalent of the fraction size in inches. Part numbers that end in SC mean that the cutter is solid carbide.