Dremel 678 Circle Cutter and Straight Edge Guide, Rotary Tool Attachment, Fits Dremel Models 4300, 4000, 3000 and 8220 - Power Rotary Tool Accessories - Amazon.com
Amazon.com: Right Angle Converter Attachment For Dremel Tool Accessories Rotary Tools fit Original 4000 3000 8200 275 Electric Grinder Kit : Industrial & Scientific