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Infinity Tools Downcut Spiral Router Bit Sets For Plywood Dado Cuts

Infinity Tools Downcut Spiral Router Bit Sets For Plywood Dado Cuts - Main image
$108.36 $354.79 In stock

Category: Router Bits Straight Bits

The Right-Size Router Bits for "Off-Size" Plywood

We've got the right diameter spiral router bits for your next project using undersized plywood. Modern plywood is almost always made in metric thicknesses that are slightly thinner than the Imperial sized router bits most companies offer. This creates a problem for many woodworkers when trying to create tight-fitting dadoes and grooves. To eliminate this problem we offer solid carbide downcut Spiral router bits in 6mm (~¼"), 12mm (~½"), and now 18mm (~¾"). These bits produce the correct size groove for plywood and the downcut geometry produces a clean, splinter-free cut even in the most delicate or expensive veneers. Working in solid wood or other types of man-made sheet goods like MDF? These solid carbide cutters are ready to handle the most demanding jobs and will outlast traditional braised cutters.

The Infinity exclusive 18mm Downcut Spiral Router Bit 85-918 features a ½" steel shank with solid carbide cutting head for the ultimate in precision and durability.

Available in two money-saving packages. Choose 00-855 for a 2-Pc. 6mm and 12mm set, or 00-856 and get all three.

Item 00-855 includes:

  • 85-108, 1/4" shank x 6mm C.D. x 3/4" C.H.
  • 85-910, 1/2" shank x 12mm C.D. x 3/4" C.H.

Item 00-856 included:

  • 85-108, 1/4" shank x 6mm C.D. x 3/4" C.H.
  • 85-910, 1/2" shank x 12mm C.D. x 3/4" C.H.
  • 85-918, 1/2" shank x 18mm C.D. x 3/4" C.H.
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Customer Reviews (5.0 / 5 · 5 reviews)

John D. ★★★★★

These bit diameters match metric plywood perfectly for dados—no more frustrating gaps. The spiral downcut design gives incredibly clean, chip-free edges on both sides of the cut. Cuts through a full sheet of Baltic birch without any burning.

Hannah ★★★★★

So glad I finally found a bit set that matches the actual metric thickness of modern plywood. The downcut spiral leaves a perfectly clean top edge on every dado I've cut so far.

Joseph S. ★★★★★

Downcut spiral really keeps the chipout off the top surface of my plywood dados, which saves me a ton of sanding. The 8mm bit fits metric plywood perfectly, just wish they offered a few more sizes in the set.