JessEm Box Joint Jig Key with Fence - 12mm
Expand the capability of your JessEm Box Joint Jig with a larger 12mm key and zero-clearance fence for stronger joints and better proportions on larger projects.
JessEm Box Joint Jig Key with Fence - 12mm is backordered and will ship as soon as it is back in stock.
Product Highlights
Product Highlights
- Expands the JessEm Box Joint Jig for larger 12mm finger joints
- Produces stronger joints for larger-scale constructions
- Improves joint proportions on bigger projects
- Baltic Birch fence provides zero-clearance backing support
- Precision-machined for accurate, repeatable joinery
Description
Description
Expand Your Joinery Options
The JessEm 12mm Box Joint Jig Key with Fence increases the versatility of your existing JessEm Box Joint Jig by allowing the production of wider 12mm box joints for larger projects and assemblies.
Designed for Larger Constructions
The wider key spacing produces stronger joints better suited to larger cabinets, boxes and structural woodworking applications where increased glue surface and improved proportions are beneficial.
Improved Project Proportions
Using wider fingers on larger workpieces creates a more balanced and visually appropriate joint layout compared to smaller spacing options.
Precision Fit for JessEm Box Joint Jig
The 12mm key and matching Baltic Birch fence are designed to fit directly onto your existing JessEm Box Joint Jig for accurate and repeatable setup.
Zero-Clearance Fence Support
The included Baltic Birch fence provides zero-clearance backing during cutting, helping minimise breakout and maintain crisp, clean joint edges.
Built for Accurate Repeatability
Precision-machined components ensure consistent spacing and reliable joint alignment throughout repeated production work.
Specification
Specification
| Key Material | Aluminium |
|---|---|
| Fence Material | Baltic Birch plywood |
| Compatibility | JessEm Box Joint Jig |
| Application | Box joint and finger joint cutting |
What's in the Box
What's in the Box
- 1 x 12mm Box Joint Jig Key
- 1 x Baltic Birch zero-clearance fence
Delivery & Returns
Delivery & Returns
Same-Day Dispatch
Orders placed before 2pm (Monday–Friday) are usually dispatched the same day. All deliveries are fully trackable.
UK Mainland Delivery Options
| Service | Delivery Time / Notes | Price |
|---|---|---|
| FREE UK Delivery | 1–2 days — orders over £85 | FREE |
| Economy Delivery | 2–3 days | £4.50 |
| Standard Delivery | 1–2 days | £5.95 |
| Express Next Day | Next working day — orders placed by 2pm (Mon–Thurs) | £7.99 |
| Express Pre-Noon | Next working day before noon — orders placed by 2pm (Mon–Thurs) | £15.95 |
| Saturday Delivery | Saturday delivery — orders placed by 2pm Friday | £25.50 |
| Click & Collect | Open for collection: 9am–4:30pm (Mon–Fri) | FREE |
Important information
- Express Pre-Noon and Saturday services aren’t available to Northern Ireland, Scottish Highlands, Islands or remote postcodes — Express Next Day takes 2 days and other services may be slower.
- Large or heavy items may not qualify for Express Pre-Noon or Saturday delivery to your area — we’ll contact you if this applies.
- Click & Collect – Collection available after you receive “Ready for Pickup” email — most orders before 2pm are same day.
International Delivery
We ship worldwide to over 200 countries. No hidden costs — all duties and taxes are calculated at checkout.
Harvey Machines & SawStop Delivery
Harvey Machines and SawStop products are shipped directly. Once your order has been placed, delivery confirmation and tracking details will be provided by the manufacturer.
Hassle-free Returns
All orders are covered by our 45-day Hassle-free Returns guarantee.

We are Wood Workers Workshop
We are a family business, run by woodworkers for woodworkers, delivering 5-star customer service since 1999.
Stocking a wide range of woodworking tools from leading brands: AUKTools, Milescraft, INCRA, iGaging, JessEm, Woodpeckers, FastCap, Verum & more.


