SKU: 100-622  |  MPN: 8110005

Magswitch MagJig 150

Regular price $61.90

Designed as the "Heart" of the Magswitch Workholding System, the MagJig 150 is a switchable magnetic clamp with 150 lbs of workholding force. It's fast, strong and precise positioning allow you to create unique fixtures that attach themselves to any cast iron top or steel fence. Use two of them in the Universal Base, item #100-623 along with all the other attachments to create a complete workholding system.

Features include:

  • Simple and fast, the ultimate strong clamp
  • Versatile – use anywhere on the table
  • Easy on/off – secure all your jigs & fixtures
  • Fast, strong, and precise positioning
  • Drill hole with 40mm Forstner bit and simply insert the MagJig
  • Use at least two per fixture
  • Add more for even greater holding force

Magswitch Accessories

Magswitch products are based on a unique magnetic locking system that allows featherboards, fences, and other useful accessories to be attached to any ferrous metal surface (like cast iron table tops and fences) with the flip of a switch. Thus, the brand name, "Magswitch." These products work with table saws, jointers, router tables and offer many other useful applications.


Yellow Magswitch featherboards, roller guides, resaw guide, universal fence and MagJig on a workbench

If you're not familiar with Magswitch featherboards and accessories, let me introduce you. As you might infer from the name, Magswitch products are based on a unique magnetic locking system that allows featherboards, fences, and other useful accessories to be attached to any ferrous metal surface (like cast iron table tops and fences) with the flip of a switch. Thus, the brand name, "Magswitch."

Magswitch Starter Kit featherboard locked to a table saw top, pressing a board against the rip fence

The heart of the Magswitch system is the Magswitch Starter Kit. The Starter kit includes a Universal Base, a pair of Mag Jigs, and a featherboard attachment. Basically, this gives you a great featherboard that can be mounted anywhere on your table saw, jointer, drill press, or band saw.

Turning the knobs on the Magswitch reverses the polarity of one of two magnets housed inside, causing the magnets to either attract or repel each other. With the switch in the "off" position, the magnet's poles are opposing and cancel each other out. With the switch "on" the magnet poles are aligned and work together to secure the Magswitch to the tabletop. It is a simple and extremely effective system that needs no power cord and never runs out of battery.

Magswitch featherboard with Vertical Featherboard Attachment holding a board down and against the table saw fence

The next piece of the system is the Vertical Featherboard Attachment. This gives you the ability to create a tandem featherboard to support tall workpieces. The featherboard can also be mounted vertically. With this combination, one featherboard helps to keep the workpiece against the fence while the other keeps the workpiece from bouncing or lifting off the table. Because the magnets are so strong you don't have to worry about the assembly lifting like you might with a featherboard that mounts in the miter track.

Side view of Magswitch tandem featherboards holding a tall board flat against the table saw rip fence

The Magswitch Thin Stock Guide and Ripping Jig can be attached to the Mag Base in place of the featherboard and serves a couple of different purposes. First, it acts as a thin strip ripping guide, allowing you to accurately adjust the rip fence to cut thin strips of wood. This system allows you to safely and consistently rip thin strips at the table saw without trapping the strip between the blade and rip fence which can cause dangerous kickback.

Magswitch Thin Stock Guide and Ripping Jig on a table saw, set as a stop for ripping thin strips from a board

The two flat faces of the Thin Stock Guide can be used as a hold-down to keep thin pieces of material from lifting as the pass through the blade. One side has steps conveniently marked for different thicknesses and the other has a consistent 45° angle for a universal fit with stock ranging to 3/4" thick.

Close-up of the bearing on the Magswitch Thin Stock Guide that sets the width of a thin rip

For supporting a tall workpiece, the Dual Roll Guide is perfect (see below). This is great for those situations where you need to create a track between the rip fence and Dual Roll Guide for the workpiece to run through with no chance of a bobble or tipping.

Magswitch Dual Roll Guide clamped to a table saw top with vertical rollers to support a tall workpiece

The Magswitch Resaw Guide is an accessory specific to the band saw. It gives you a single set of guide bearings that provide a pivot point for resawing thicker stock into thinner boards. The rollers are aligned with the blade of the band saw during use.

Magswitch Resaw Guide on a band saw table, its single set of rollers lined up with the blade

Every band saw blade has what's known as "drift," meaning that the cut line through the workpiece may not be parallel. When using a traditional fence, the fence must be aligned to the blade's drift angle to ensure straight cuts. The Resaw Guide eliminates the tedious fence alignment by providing a pivot point for the workpiece to allow you to adjust for blade drift during the cut. Simply draw a line on the edge of the workpiece to follow then pivot the workpiece as needed to stay on the line during the cut. The Resaw Guide is also nice for those exceptionally grainy pieces that tend to make the blade wander when making tall cuts.

Board running against the Magswitch Resaw Guide while resawing on a band saw

The last piece of the system is the Universal 18" Fence. Perfect for tools like the drill press or bandsaw that don't have a fence, or at least not a good one.

Magswitch Universal 18-inch fence with T-tracks mounted on magnetic bases on a machine table

The Magswitch Universal fence has a set of 1/4"-20 T-tracks on one face and a set of 5/16"-18 tracks on the other which provide almost unlimited options for mounting feather boards, hold-downs, or just about anything else you can think of.

Magswitch Universal 18-inch Fence mounted on a band saw table, showing its dual T-track faces

If all you really need is a basic featherboard Magswitch has you covered with the Universal Featherboard. This handy item is a dedicated featherboard that works on either the right or left of the saw blade.

Magswitch Universal Featherboard, a dedicated featherboard with two magnetic switches for either side of the blade

If you are inclined to make your own custom jigs and fixtures MagSwitch offers the MagJig. These are the magnetic switches that come with the starter kit. They fit into a 40mm or 1-5/8" hole and are perfect for 3/4" thick material. They can be a real lifesaver when it comes to securing your custom or project-specific fixtures.

Magswitch MagJig magnetic switch with knob, used to secure custom shop jigs and fixtures

Magswitch accessories are so handy to have around the shop, we've created a number of money-saving packages.


Frequently Asked Questions

How much holding force does the MagJig 150 have?

It provides 150 lbs of workholding force in a compact switchable clamp. Explore related push blocks and featherboards.

How do I install a MagJig 150 into a jig?

Drill a hole with a 40mm Forstner bit and simply insert the MagJig. Find the right bit in our Forstner bits collection.

How many MagJigs should I use per fixture?

Use at least two per fixture for secure holding, and add more MagJigs for even greater holding force.

What surfaces does the MagJig attach to?

It attaches to any cast iron top or steel fence, letting you create fixtures that hold themselves in place.

Is the MagJig 150 switchable on and off?

Yes. It has an easy on/off action, so it locks securely when switched on and releases instantly when switched off.

What is the Universal Base used for?

You use two MagJig 150s in the Universal Base (item #100-623) along with the other attachments to create a complete Magswitch workholding system.

Can I add more MagJigs for stronger holding?

Yes. While at least two per fixture is recommended, you can add more MagJigs to increase the total holding force.

Who makes the MagJig 150?

It is made by Magswitch and serves as the heart of the Magswitch Workholding System.

What can I build with MagJig 150 clamps?

You can create unique fixtures and jigs that attach to cast iron or steel surfaces, such as featherboards and hold-downs. Pair them with coping sleds and other shop accessories.

Why is the MagJig called the heart of the system?

Because it provides the switchable magnetic clamping force that all the other Magswitch attachments build upon, anchoring your fixtures fast, strong, and with precise positioning.