Dremel 1/8-in Rotary Tool Plunge Router in the Rotary Tool Attachments & Batteries department at Lowes.com
Homemade Rotary Tool Plunge Base - YouTube
StewMac Plunge Router Base - StewMac
Amazon.com: Jiayouy Precision Rotary Tool Plunge Router Attachment – Perfect for Guitar Bass Fretted Instrument Work - Type B : Tools & Home Improvement
Amazon.com: Precision Router Base - Support for Motor Tool - S-T235 : Musical Instruments