The three tungsten carbide cutting tips in this Nibbler are indexable and replaceable. When the edges are blunt you simply unscrew the tips and turn them to a fresh edge. The tips are normally used in the metal-cutting industry to cut stainless steel so they will last exceptionally long when cutting wood.
This Nibbler fits only 3.2mm (1/8") collet such as the Dremel, Foredom and other popular tools. Works great with the Dremel flexible shaft.
All Nibblers are made from T431 grade stainless steel, which has nearly double the tensile strength of 304 grade stainless steel.