M2 high-speed steel cutting edge welded to a shatter-resistant spring steel back

SPEED SLOT features a staircase designfor easy plug removal

4/6 Vari-Tooth design for aggressive cutting action and reduced vibration

3/16" thick heavy-duty backing plate is more durable than stamped backing cups and eliminates need for torque driving plate

Use for heavy-duty cutting in stainless and mild steel, cast-iron, copper, brass, aluminum, plastics, wood, and composition board