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Understanding Guide Bushings

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Comparing alternatives

You can skip using a guide bushing altogether if you use a pattern bit or flush-trim bit. Both types have a bearing that rides against the template, just as a bushing does. But because the bit cuts flush with the bearing, you don't have to calculate offset.

For more in-depth information on routing, visit the Routing Techniques section in the WOOD Store.

SETUP	PROS	CONS
	Plunge cuts are possible. Can substitute for straight bits. Template hole and workpiece hole are the same size.	Bit deflection is more prevalent with small-diameter bits. Full cutting length is exposed whenusing thin templates.
	Works well in a router table or handheld router. Only needed cutter length is exposed. Template hole and workpiece hole are the same size.	Cuts are always full depth of the workpiece. Can't make plunge cuts.
	Plunge cuts are possible. Can use multiple bits with same bushing. Both shallow cuts and deep cuts are possible.	Hole in template must be larger than hole in workpiece. Can't duplicate parts exactly.

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