MicroJig GRR-RIPPER 3D Pushblock Review: Features & Performance
A good push block can make a big difference when working with narrow or difficult-to-control stock at the table saw. Keeping a workpiece firmly against the table and fence while maintaining control throughout the cut is essential.
That's where the MicroJig GRR-RIPPER 3D Pushblock comes in.
We've previously looked at MicroJig's simpler GRR-RIPPER 2GO, but the GRR-RIPPER 3D takes the concept a step further with adjustable components that give you more control over how the push block supports a workpiece.
After using it in the shop, I found several features that make it a useful addition to my collection of table saw accessories.
What Makes the GRR-RIPPER 3D Different?
The biggest advantage of the GRR-RIPPER 3D is its adjustability.
Unlike a conventional push block with a fixed gripping surface, the GRR-RIPPER 3D uses multiple legs that can be positioned to suit the workpiece and cutting operation.
This allows you to apply downward pressure where it's needed while configuring the push block to clear the blade.
Two features stand out: the adjustable center leg and the removable balance support.
Adjustable Center Leg for Different Cuts
One of the first things you'll notice is the adjustable center leg.
It's attached with small thumbscrews that allow you to shift it from side to side.
This is especially useful when working with narrow stock or making bevel cuts where the blade position requires a different push block setup.
By repositioning the center leg, you can place pressure on the workpiece while keeping the leg out of the blade's path.
The adjustability gives you more flexibility than a traditional push block, particularly when the width or shape of the workpiece changes from one cut to the next.
Of course, you'll want to check the position of all the legs before making a cut to ensure they clear the blade.
SafeRip Kit Helps Identify the Center Leg Position
MicroJig includes a SafeRip Kit with the GRR-RIPPER 3D.
This accessory attaches to the adjustable center leg and provides a visual reference for its position.
When the push block is against the rip fence, the SafeRip indicator makes it easier to determine where the center leg is located relative to the blade.
It's a small feature, but one I appreciate.
Before making a cut, being able to see where the center leg sits adds confidence to the setup and makes it easier to verify blade clearance.
The indicator doesn't replace checking the actual cutting path, but it's a helpful reference.
Balance Support Adds Stability for Narrow Workpieces
Another feature that separates the GRR-RIPPER 3D from the simpler 2GO is the adjustable balance support.
This broad accessory attaches to the side of the push block using thumbscrews.
You can raise or lower it to match the thickness of the workpiece and provide additional support.
The balance support is especially helpful when working with narrow stock.
Without it, the push block may have a tendency to tip to one side. The balance support helps keep the tool level as you guide the workpiece through the cut.
It's not necessary for every operation, but it adds versatility when the workpiece doesn't provide a wide enough surface to support the push block.
Useful Beyond the Table Saw
One thing I like about the GRR-RIPPER 3D is that it isn't limited to table saw work.
The balance support also makes it useful at the router table.
For example, when routing a curved corbel using a template, the push block provides a convenient gripping surface for controlling the workpiece.
This makes the GRR-RIPPER 3D a more versatile accessory than a basic table saw push block.
How Well Does the GRR-RIPPER 3D Perform?
So, how does the GRR-RIPPER 3D actually perform in the shop?
Overall, I was pleased with it.
The rubber gripping surfaces on the bottom of the legs provide plenty of traction. In use, the grip feels comparable to a conventional jointer push block.
That traction helps maintain control over the workpiece as you feed it through a cut.
The adjustable balance support also works well, although there's one detail worth watching.
If you position the balance support too low, it can lift the gripping legs slightly off the workpiece and reduce their traction.
It's important to adjust the support carefully so the legs maintain firm contact with the stock.
One Feature I'd Like to See
After using the GRR-RIPPER 3D for a while, I found myself wishing it had a rear cleat.
A cleat at the back of a push block can help drive a stubborn workpiece forward, especially when the material is difficult to feed.
Apparently, I'm not alone in that observation.
MicroJig offers an optional cleat attachment that mounts to the back of the push block.
It's an accessory worth considering if you frequently work with stock that needs a little extra help moving through a cut.
GRR-RIPPER 3D vs. GRR-RIPPER 2GO
Both push blocks are designed to help woodworkers maintain control over a workpiece, but the GRR-RIPPER 3D provides additional flexibility.
The main differences highlighted in our shop review are the adjustable center leg and the balance support.
If you mainly need a straightforward push block for occasional cuts, the simpler 2GO may be all you need.
But if you regularly work with narrow stock, make bevel cuts, or want a push block that can adapt to different setups, the GRR-RIPPER 3D offers useful additional features.
Is the MicroJig GRR-RIPPER 3D Worth It?
After using the GRR-RIPPER 3D in the shop, I came away satisfied with its performance.
The adjustable center leg provides flexibility for different cutting operations, the SafeRip Kit helps identify the leg's position, and the balance support adds stability when working with narrow stock.
The rubber gripping surfaces also provide a reassuring amount of traction.
There are a couple of things to keep in mind. The balance support needs to be adjusted correctly to maintain grip, and a rear cleat would be a useful addition for more demanding cuts.
And while I won't reach for a push block every time I use the table saw, I'm glad to have this one nearby.
I've had my share of table saw scares over the years, and the GRR-RIPPER 3D is a useful accessory when working with thin, narrow, or knotty stock that requires extra control.
For woodworkers looking for a more adjustable push block, it's well worth considering.
More Table Saw Tips & Techniques
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