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Rockler® Perfect Fit Dado Jig w/100'' NGX Clamping Straight Edge Guide

Uses a scrap of your actual material to set the dado width—includes 100'' guide with quick-release clamping lever!
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$169.97 Kit
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This package combines the easy clamping action of the 100'' Bora NGX Clamping Straight Edge Guide with the precise dado-cutting capabilities of our Perfect Fit Dado Jig. With just two passes along the included guide, the Perfect Fit Dado Jig lets you rout precise dados and grooves at any increment from 1/4'' to 1'' wide. Since it uses a scrap of your actual material for setup, the fit is spot-on, every time. Just rout the first shoulder with the jig in the ''closed'' position, then rout the second shoulder with the jig in the ''open'' position. The result is a tailor-cut dado that fits like no other. Once the jig is set, the stops make it easy to return to the ''open'' position so you can machine as many dados as you like for that thickness. No need to buy undersized plywood bits, or bits for other odd thicknesses—your dados can fit any thickness within the range (19/64'' for example) using standard 1/4'', 3/8'' or 1/2'' straight bits. Not only do you get easy operation and a perfect fit, you also get an integral dust port that lets you hoover up the mess before it ever hits the floor.


  • Perfect for plywood that's thinner than the nominal thickness, and for lumber that's been planed to a non-standard thickness
  • Uses a scrap of your actual material to set cutting widths for a precision fit
  • Built-in dust port provides point source dust collection
  • Knurled knobs act as stops, making it easy to return to the ''open'' position for cutting multiple dados of the same width
  • Cuts dadoes from 1/4'' to 1'' wide
  • Made from durable, smooth-sliding glass-reinforced plastic
  • Works with 1/4'', 3/8'' or 1/2'' diameter straight router bits (not for use with undersize bits)
  • Includes removable baseplate with pre-drilled hole patterns to fit popular routers (see list at bottom)

Important Compatibility Notes:

  • Not for use with undersized plywood router bits
  • Not for use with a plunge router

Pre-Drilled for the Following Mid-Size Routers:

  • Bosch 1617
  • Dewalt DW616
  • Dewalt DW618 series
  • Hitachi M12VC (not M12V)
  • Makita 1100 series
  • Porter-Cable 100
  • Porter-Cable 690
  • Porter-Cable 890 series

Package includes the versatile, accurate 100'' Bora NGX Clamping Straight Edge Guide!

Useful for much more than just routing—this straight edge can be used to guide jigsaws, circular saws and more. Since it's composed of separable lengths, you can break it down for use as a 50'' guide when portability is important. Quick-release lever makes it easy to secure. See the optional T-Square Attachment (#63584, sold separately) for automatic squaring to the edge of your work.

Rockler Perfect Fit Dado Jig
(1) Jig base
(1) Router plate
(1) Pack of mounting hardware
(1) Pack of knobs and T-bolts
(1) Set of instructions
(1) 100'' Bora NGX Clamping Straight Edge Guide (two 50'' guides with connection kit)

More Information
Brand Rockler
Weight 7.600000
Tech Spec
  • Dado Width Range: 1/4'' to 1''
  • Compatible Router Bits: 1/4'', 3/8'' and 1/2'' (NOT for use with undersized plywood bits)

Prop 65 WarningWARNING:
Cancer and Reproductive Harm. For more information go to
Prop 65 WarningWARNING:
Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to