A 6- lo 12-inch-long strip of material is all it Is. But an offset gauge allows you to position a T-square speedily and accurately, using a mark for the dado's edge as a starting point. The gauge's trick is this: It is exactly the same width as the distance from the bit's cutting edge to the baseplate's edge.
To make the jig, clamp a fence near the edge of a workbench. Butt the gauge stock to the fence, and tack it down with a couple of brads or stick it down with carpet tape. Guide the router along the fence, cutting through the stock. Pry up the gauge. You now have a way to posit ion your T-square when using the router-and-bit combination used to make the gauge.
Mark the gauge indelibly with the bit and router used. I like to drill a "hanging hole" in the jig, too.
To use the jig, measure and mark one edge of the dado. You don't have to square a line across the
Want to know how far to offset the T-square?
Make a trial cut through a scrap of hardboard or thin plywood. Set a fence a couple of inches from the workbench edge. Stick a scrap to the bench top with carpet tape, putting it tight against the fence. Run the router along the fence, cutting through the scrap. The remaining stock is the offset gauge.
workpiece. You don't have to mark both edges. Just a single tick mark per dado is all you need.
Align one edge of the offset gauge with the mark, and butt the T-square against the other edge. The T-square's crossbar ensures that the fence is square to the edge. The offset gauge ensures that the fence is the proper distance from the dado location.
Quick, simple, and direct.
If you feel like being picky, make sure you have a different jig for each dado-cutting bit in your collection. This doesn't mean simply one for each size bit you have, but one for every individual straight. Your '¿-inch-shank K-inch straight may actually be slightly different in cutting diameter than your 14-inch-shank bit of the same size. And it should go without saying—but I'll say it anyway—that you can't use a gauge cut with one router to set the T-square for use with a different router.
Using the offset gauge is as simple as aligning one of its edges with the layout mark, then butting the T-square against the other edge. The T-square's crossbar will ensure that the fence is square to the edge.
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There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.