Power Tools for Professionals



Plunge Router Base

The Bosch RA1166 plunge base is designed for use with the Bosch 1617 and 1618 series routers and greatly expands the router's versatility. It features smooth plunge action and a spring-lock plunge control lever conveniently located for easy usage. The depth adjustment system includes a multi-step adjustable depth stop turret, plus a microfine adjustment on depth rod for fast, accurate depth setting. This base allows a plunging depth of up to 2-5/16 In. The precision centering design allows the subbase to be centered around the bit, which makes it easy to keep the bit on intended cut line when using jigs, templets, dovetail fixtures and similar guidance devices. The RA1166 plunge base accepts several different Bosch routing attachments, including the RA1126 tool-free Templet guide adapter, RA1054 deluxe router guide and RA1173AT dust hood kit.

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  • Plunge Base Chip Shield -- 2 610 912 599


  • Tool-free conversion — quick clamp system allows removal of motor from base with ease
  • Wide 3-5/16 In. base opening and 2 In. subbase opening — accepts larger bits and provides better visibility
  • Fine adjustment on depth rod — for fast, accurate bit depth setting
  • Contoured soft grip handles — provides enhanced control and comfort
  • Plunge release lever — conveniently located to allow maximum control
  • Accepts tool-free Templet guide adapter system — fast and easy Templet guide changes
  • Plunge cut up to 2-5/16 In. deep
  • Precision centering design - makes it easy to keep bit on intended cutline when using jigs, templates, dovetail fixtures and similar guidance devices
  • Works with motors included with 1617, 1617EVS, 1617EVSK, 1618, 1618EVS routers
  • Compatible with optional RA1129 Template Guide Adapter Set – for easy change of Bosch quick-release template guides and common threaded template guides

Technical Data

Material Aluminum
Subbase Opening 2"
Weight 3.0lb
Works With Routers and Router Motors
1617, 1617EVS, 1617EVSPK, 1618, 1618EVS
Router Guide
Template Guide System
RA1128 Template Guide Set, RA1129 Template Guide Adapter Set
Centering Device for Subbases and Attached Template Guides
Dust Collection Attachments
RA1175 Edge-forming Dust Hood, RA1173AT Three-Hood Dust Hood Set
Includes Plunge Base Chip Shield -- 2 610 912 599
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