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Infinity Tools 5-Pc. Setup Block Kit For Box Joint Jig, BJJ-001

Infinity Tools 5-Pc. Setup Block Kit For Box Joint Jig, BJJ-001 - Main image
$17.68 $24.9 In stock

Category: Measuring & Layout Setup Blocks

The key to tight-fitting box joints is an accurate setup. The width of the key, distance between the key and saw blade (or router bit), and the width of the saw blade (or bit) must all be identical. Our new box joint jig setup gauges make this an easy task. The HDPE (high-density polyethylene) gauges won't harm the delicate edges of your saw blade or router bit. Simply place the notch of the gauge over the key to adjust the key's width. Then position the key so that the edge of the gauge just contacts the edge of the blade or bit.

Our gauges are a full 3/8" thick and come in a complete set of 5 in 1/8" increments with the measurement engraved on each.

Sizes Included:

  • 1/4"
  • 3/8"
  • 1/2"
  • 5/8"
  • 3/4"

Uses in your shop:

  • These gauges were designed for our BJJ-001 Box Joint Jig but work equally well for setting up any box joint jig on the table saw or router table.
  • A must-have for reducing setup time when cutting box joints.
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Miles ★★★★★

Setting up my box joint jig used to take forever with feeler gauges and guesswork, but these blocks made it a five-minute job. The machined faces are dead-on flat, so the key width and blade spacing come out perfect every time.

Carter R. ★★★★★

The cutout for the key width is machined so precisely that my joints finally came out tight on the first try, no more fiddling with shims. I like that the kit covers the blade width and the key distance in one set, so it's a solid buy if you’re chasing consistent fit.

Sophia ★★★★★

I was surprised how much easier these blocks make dialing in perfect box joints—the precision-ground edges really do ensure every key width matches. No more fiddling with calipers and test cuts.