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Leigh Isoloc Templates

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Leigh Jig
Pattern

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Leigh Industries' Isoloc Templates are accessory joint cutting templates for Leigh's Dovetail jigs. There are a total of 6 joint designs, with all of the designs being amazingly easy to cut. If you've ever cut half-blind dovetails on a fixed jig, you've already done more complicated work than Isoloc templates will require. The precision-machined aluminum templates fit on Leigh dovetail jigs, with no modification required. All you'll need is a 5/16" straight router bit. Leigh recommends rigid, clean-cutting solid carbide up-cut spiral bits.

Template Guide

The template guide used with Isoloc's is provided with the templates, and it's one of the system's strong points. It's Leigh's Variable Guidebush System, which allows built-in fine tuning of joint tightness. The turret of the nominal 1/2" template guide is milled to a 5-degree taper, so rotating the threaded turret within its mounting flange can increase or decrease its effective size in increments of less than .001", allowing quick and easy tuning to fit any bit. VGS template guides fit any standard Porter-Cable, Black & Decker or DeWalt style router base, and can be fitted to other routers using the Leigh adapters listed separately.

Joint Patterns

Each Isoloc template offers two joint patterns. All six patterns can be used for half-blind or through joints, and each can also (with 1/4" & 3/8" bits instead of the usual 5/16" bit) cut joints with a 1/16" inlay of contrasting wood. Stock capacities are from 3/4" to 1-1/2" thickness on the socket or "pin" piece and up to 1" thick on the "tail" piece. Maximum workpiece width varies from the standard jig width slightly depending on the shape of each template.

  • Key and Clover patterns are about 1/4" narrower than standard.
  • Ellipse pattern is about 3/4" narrower than standard.
  • Mirror Key pattern is about 1-1/4" narrower than standard.
  • Bear's Ears and Wave patterns are about 1-3/4" narrower than standard.

Each template comes with a 5-piece VGS template guide system and fully illustrated manual which is a model of clarity.


Leigh Jig Pattern HW # Leigh #
D3, D4 and D4R Key and Mirror Key - A 105340 I1A-24
D3, D4 and D4R Clover and Bear's Ears - B 105341 I1B-24
D3, D4 and D4R Ellipse and Wave - C 105342 I1C-24
D3, D4 and D4R All Three
Patterns		 Set of 3 105348 I1-3pack
Super 18 Clover and Bear's Ears - B 105711 I18B
Super 24 Key and Mirror Key - A 105712 I24A
Super 24 Clover and Bear's Ears - B 105713 I24B
D1600 Key and Mirror Key - A 105469 I1600A
D1600 Ellipse and Wave - C 105468 I1600C