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M-Power CRB7 MK3 Multi-Function Router Base

The CRB7 MK3 arms your router with the ability to cut fully micro-adjustable dadoes, mortises, circles, and indexed grooves for faux paneling and shelving systems.
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$114.99 ea
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Realize the full potential of your router in only seconds with the easy-to-install CRB7 MK3 Multi-Function Router Base. The CRB7 MK3 arms your router with the ability to cut fully micro-adjustable dadoes, mortises, circles, and indexed grooves for faux paneling and shelving systems. In addition to that, the offset design provides excellent anti-tilt support, and includes an accessory support foot for routing narrow materials. The MK3 also boasts a large circle compass feature enabling you to rout circles from 19'' to over 50''. Increased stability in turn leads to better accuracy and finish quality.

You can also add the CRB7 Edging Trim Kit (#45052, sold separately) for the ability to trim solid wood edging or edging tape without having to run your router on the narrow edge of the material. The CRB7 fits all routers with edge guide rod drillings, and unlike similar jigs, it requires no screws or drivers to install, just slide it on and tighten the knobs.


  • Adjustable Dadoing or Trenching with a Clamp Guide: Set your clamp guide (sold separately) once and adjust the position of the router via the CRB7 MK3's Micro Adjuster
  • The CRB also increases the reference surface between your router and the clamp guide, and reduces clamp guide set up time
  • Adjustable Mortising: Install the included mortising pins to cut "centered and off centered" mortises. Microadjust wheel allows you to precisely control the width of the mortise
  • Ant-Tilt Support: Traditionally, most of the router base remains unsupported when edge routing, but the CRB anti-tilt leg eliminates router tilt, especially important when routing narrow workpieces
  • Compass/Circle Cutter: Use the magnetic pin to rout precision circles and holes, even holes that are actually smaller than the base of the router! CRB can rout circles from 3/4'' to 8-3/4'' radius, using a 1/4'' straight bit
  • Large Compass/Circle Cutter: Uses a pivot hub and 25/64'' compass rods to rout precision circles and holes from 19'' to over 50'' Diameter
  • Offset Base Plate: Increases overall router stability
  • CRB also moves the pivot hand that the router toward the center of the panel, reducing the chance of burn marks
  • Adjustable/Repeatable Beadboard, Groove Copier: The CRB provides a simple and exceptionally quick way of accurately repeating a dado or grooves for shelving systems and false panelling
  • Use the Edging Trim Kit (#45052, sold separately) to effortlessly and accurately trim hardwood and iron-on edging flush with the panel
  • Set up with speed and ease - The CRB7 MK3’s adjustable cranked rods allow both the inter rod width and rod height to be simultaneously adjusted
  • Fitting the CRB7 MK3 to your favorite router couldn't be easier, the cranked rods allow it to be fitted to the majority of routers on the market
  • Quick Change: Unlike most router jigs, the CRB7 can be fitted/removed in less than 10 seconds, with no fiddly screws or cantering jigs required
  • Micro Adjuster: High precision router cutter position can be attained and repeated using the knurled and indexed micro adjuster
  • 2'' Bakelite Ball Handle: Ergonomic design, comfortable to the touch
  • Indexed Rule: Self-adhesive Imperial/Metric rule ensures fast, easy readings
  • 2-Section Anti-Tilt Leg supports and stabilizes the router when routing materials from 3/8'' to 3-1/4'' thick
  • Includes two pairs of different sized guide rods to fit more routers
  • Onboard Magnetic Pivot Pin Storage: A safe home for this essential component, easily accessible when ever needed
  • Professional Grade Build: Made in England, CRB is manufactured to the highest standards and features a machined, hard-anodized solid aluminum bridge
  • Laser cut 5mm thick acrylic baseplate and precision-turned steel and brass components

(1) M-Power CRB7 MK3 7-Function Router Base
(2) Mortising pins with machine screw fixings
(1) Circle-cutting index pin with machine screw fixing
(1) Offset handle
(1) 2-Part anti-tilt leg
(2) 9/32'' (7mm) Guide rods
(1) Indexed rule
(2) 5/16'' (8mm) Guide rods
(2) 25/64'' (10mm) Compass rods
(1) Compass pivot hub and woodscrew fixings
(2) Guide rod lock bars

More Information
Brand MPower
Manufacturer Part Number A-USA/MP/CRB7
Weight 3.250000
Tech Spec

Large Circle Compass

  • Min Diameter: 19''
  • Max Diameter: over 50''

Small Circle Compass

  • Min Diameter: 1-1/2'' (38mm)
  • Max Diameter: 17-1/2'' (450mm)
  • 2 Year Guarantee
Type Circle, Router Base