Cut Cauls when Cutting Box Joints

When cutting box joints on the tablesaw or router table, I attach a scrap piece of Baltic-birch plywood to the back of the workpiece with double-stick tape. After the joint is cut, I remove the plywood backing and turn it into a caul by paring a little off the inside corner of each pin with a chisel.

This keeps the pins from interfering with the joint assembly and reduces problems with glue squeezeout. I give the caul a quick spray of shellac and attach it to the workpiece with double-stick tape, lining up the fingers. Two of these, one at each corner, ensure a tight joint.

Illustration: Jim Richey

Fine Woodworking Recommended Products

MicroJig Matchfit dovetail clamps

These unique clamps have angled tips that hold templates and fences in place without getting in the way.

Buy at Amazon

Incra Miter 1000HD

One of many extremely accurate Incra miter gauges, this model offers 180-degree adjustment to 1/10 of a degree, and a long, straight fence with a telescoping stop system.

Buy at Amazon

Hedgehog featherboards

The Hedgehog's unique spiral shape and single knob make it easy to set up and fast to adjust.

Buy at Amazon