Box (Finger) Joint Templates for

D-series Dovetail Jigs

Add an F3 (inch) or F3M (metric) Template to your Leigh D-series Dovetail Jig and open up a world of joinery options. Fits all 24" [610mm] D4R Pro, D4R, D4, D3 and D1258/R Jigs.

Box joints, also called finger joints, add visually striking symmetrical design to corner assemblies. Rout 11 sizes of box (finger) joints from 3/32"(2mm) to 1"(25.4mm), three sizes of half-blind box (finger) joints, triple size joints and wooden hinges. Make beautiful woodworking pieces with smaller joint sizes like jewelry boxes, or larger joint sizes like stools or tool boxes.

Create all this with the F3 / F3M

The F3 / F3M Template helps you rout the perfect sized joint to suit any woodworking project.

Through Box / Finger Joints
  • Quarter size: jewelry box 3/32", 1/8" (2mm)
  • Miniature pieces like jewelry boxes
Through Box / Finger Joints
  • Half size: wine box 5/32", 3/16", 1/4" (4, 6mm)
  • Wine gift boxes
Through Box / Finger Joints
  • Full size: 5/16", 3/18", 1/2" (8, 10, 12mm)
  • Stool, sturdy storage box
Through Box / Finger Joints
  • Double size: 5/8", 3/4", 1"(16, 20, 24mm)
  • storage box for heavy items
Half-Blind Box / Finger Joints
  • 5/16, 3/8", 1/2"(8, 10, 12mm)
  • unique joinery application
  • 1/8" up to 1-1/2" joints
  • box lids and cabinet hinges
Simple Operation

With your Leigh F3 / F3M Template mounted on your jig, and board clamped in jig, simply guide your router around the template comb to rout the box (finger) joints. Then reposition the template to rout the mating board. It’s so easy!

Easy Step-By-Step Instructions and Superior Customer Service

Leigh has made perfect joinery easy in every way, from thorough, step-by-step user guides and bulletins, to how-to videos. Leigh’s customer service is second to none, with instant toll-free technical support.

Router requirements

What Router Should I Use?

Leigh recommends a midsize router, from 1-1/2 to 2-1/4 HP (9-13 amps) with a 1/2” collet. This size provides great power to weight ratio. Fixed base routers are ideal because they have a lower center of gravity with handles mounted to the router base rather than the motor, as with plunge routers. However, if you are proficient with the use of a plunge router, it works just as well.
Guide Bushing Adaptors for your Router

All Leigh Dovetail & Box Joint Jigs need a router fitted with a Leigh guide bushing. Because the router industry isn't standardized, you may need an adaptor to fit the guide bushing to your router. Learn more >
Router Collets

The F3/F3M requires a router with a 1/2" collet, and smaller bits require the use of collet reducer. See video >