JessEm Spline Jig

Precision Spline Joinery for Stronger, More Decorative Miter Joints

Create beautiful, reinforced miter joints with confidence using the JessEm Spline Jig. Designed for woodworkers who demand precision and repeatability, this premium router table jig produces perfectly aligned spline slots that add both strength and visual appeal to mitered corners.

Ideal for decorative boxes, cabinetry, drawers, furniture, and fine woodworking projects, the JessEm Spline Jig delivers smooth, accurate operation with minimal setup, allowing you to create professional-quality spline joints every time.

Engineered with four precision R4 bearings, the jig glides effortlessly across your router table for exceptional control and repeatable accuracy. Its innovative design also provides full access to your router lift, allowing quick bit height adjustments without removing the jig or router plate.

Why Choose the JessEm Spline Jig?

• Produce perfectly aligned spline joints with exceptional accuracy
• Reinforce miter joints while adding a decorative finish
• Smooth-gliding bearing system for effortless operation
• Fast, repeatable setups with adjustable stop system
• Full router lift access without removing the jig
• Premium CNC-machined construction built to JessEm's exacting standards

Smooth Glide Bearing System

Four precision R4 bearings provide exceptionally smooth travel across your router table, ensuring accurate, repeatable spline slots with every pass.

Built-In Adjustable Stops

Four integrated adjustable stops make it easy to produce consistent spline locations, improving accuracy while reducing setup time for repeat production.

4¼" Travel with Full Router Lift Access

Enjoy 4¼ inches of smooth travel while maintaining unrestricted access to your router lift. Easily adjust bit height or lock your lift without removing the jig or router insert plate.

MatchFit® Compatible

A precision-machined dovetail slot accepts the MicroJig MatchFit® Clamping System, providing versatile workholding options for a wide variety of woodworking projects.

Convenient Wall Storage

An integrated hanging feature allows the Spline Jig to be neatly stored on your shop wall, keeping your workspace organized and your jig within easy reach.

The JessEm Spline Jig is ideal for creating decorative spline joints in:

• Decorative boxes
• Keepsake boxes
• Cabinet doors
• Drawers
• Furniture
• Picture frames
• Mitered cases
• Fine woodworking projects
• Custom cabinetry

Built for Accuracy. Designed for Repeatability.

Whether you're producing a single heirloom project or multiple production pieces, the JessEm Spline Jig delivers the precision, repeatability, and smooth operation professional woodworkers expect. Designed and manufactured with JessEm's commitment to quality, it's the ultimate router table accessory for creating clean, decorative spline joints with confidence.

The JessEm Spline Jig is compatible with router tables featuring a standard miter track.

For proper operation, the distance from the center of the miter track to the center of the router bit must measure between:

• Minimum: 4.2" (107 mm)
• Maximum: 7.7" (196 mm)

Not Compatible With

• Rockler Pro Lift
• Rockler SL Lift
• Kreg PRS3000 Router Lift
• Kreg Router Table Insert Plates
• Woodpeckers PRL-V1
• Woodpeckers PRL-V2
• Bench Dog 40 Series Router Lifts

What's Included

• JessEm Spline Jig (and Hex Keys if bought on own)
• Stainless Steel Mounting Plate
• Mounting hardware
• Instruction manual

Router bits, spline material, and clamps are sold separately.

WARNING - Cancer and reproductive harm. For more information please click: JessEm Prop65 Warnings

SHIPPING, POLICIES & WARRANTY INFORMATION

MANUAL: