Riving Knife On Table Saw | What Is It and How To Use For Safety?

While a table saw is an important tool for many woodworkers, it can be dangerous if not used properly. One of the most important safety features on a table saw is called a riving knife. Riving Knife on table saw!

The riving knife is what makes sure that the blade does not come in contact with your work piece as you are cutting it. This prevents kickback and reduces chances of injury or damage to your project.

In this blog post, we will discuss what a riving knife is and how to use one properly on your own table saw!

A guide bar keeps the work piece straight while the two blades cut through it from opposite sides.

A riving knife is a safety feature on the table saw that makes sure that when you are cutting your work piece, the blade does not come in contact with it.

The two blades cut through from opposite sides of the guide bar while keeping any part of your project from coming into contact with them at all times.

 

If you install or replace a riving knife and forget to do so before turning on your machine, what could happen?

As soon as power is applied to the saw, an alarm will sound until you turn off either switch A or B.

In addition to sending this warning signal, some models also provide tactile feedback by applying pressure against one side of the piece being cut – which can be quite painful and throw wood chips up onto.


woodsawtoolRiving Knife On Table Saw !What is a riving knife?

Riving knife is a safety device that installed on a table saw, radial arm saw  or circular saw using for woodworking. Attached to the saw’s arbor, it is fixed relative to the blade and moves with it as blade depth is adjusted.

A riving knife has a number of benefits that make it an important safety feature on these machines.

woodsawtoolFirst, the blade should never be allowed to come into contact with them at all times.

If you install or replace a riving knife and forget to do so before turning on your machine, what could happen? As soon as power is applied to the saw, an alarm will sound until you turn off either switch A or B.

In addition to sending this warning signal, some models also provide tactile feedback by applying pressure against one side of the piece being cut – which can be quite painful and throw wood chips up onto

woodsawtoolThe second benefit provided by a riving knife is its ability engage material for cutting in much smaller increments than are possible

 

Benefits of Using Riving Knife On Table Saw

 

woodsawtoolThe first benefit provided by this device is its ability to prevent kickback from occurring at all during most cuts (more about this below).

woodsawtoolThe second benefit it provides is an increased safety margin for the operator’s hands due to how close they are positioned towards the active cutting edge.

When enabled, these two features allow you to work faster in relative safety while producing more accurate results than would otherwise be possible without them – so why not give your table saw a riving knife?

Purpose of Riving Knife on Table Saw -Why is Essential for Your Table Saw

A riving knife is a safety device fitted to some saws, which prevents the board from “jumping” or being forced rearward when cut.

The blade and guard assembly on most table saws can be raised for cutting tall stock (such as lumber), then dropped again so that the gap between blade and arbor will open wide enough for boards up to about 12 inches in length.

When this happens, there’s always a danger of kickback because wood pieces may get jammed under the blade and thrown back at you.

The purpose of a riving knife is to bridge across your workpiece with its upper edge just below the surface of what was just cut by either shaving it thin so it has less weight or holding position

You can also use a riving knife to help reduce tear-out on long boards when ripping. The idea is that the board will flex as it passes through the saw, and if there’s a riving knife in place this will cause an outfeed support piece of wood to engage with the trailing edge of your workpiece.

This is less likely to happen without one because what you’re cutting has nothing holding onto it from behind until it exits off the blade. without one because what you’re cutting has nothing holding onto it from behind until it exits off the blade.



woodsawtoolHow to Install Riving Knife on Table Saw

The first thing you need is a blade guard retainer and the appropriate wrench. Loosen the hex bolts, then lift up the blade guard by pulling it away from your workpiece.

Now remove the three screws that hold down what’s left of your old switch housing, as well as any mounting brackets or hardware attaching it to your machine. Replace with new components using step-by-step instructions in our online document:

Next loosen all four frame mounting screws and raise one side of the table while lowering its mate until there are no gaps between them (this will allow for height adjustments later).

Tighten everything back up, Cast iron tables are thick, and have four mounting screws per corner. But most contractor-grade machines only come with two bolts in the corners to keep it from tipping over, which is not enough for a solid mount.

This means that you’ll need some heavy duty washer clamps or C-clamps to fill out your table’s frame when the time comes.

Lower any open spaces in the frame using a riving knife on an electric saw. This clear out felled wood that is not yet cut by the blade’s teeth as it passes over what you’re trying to cut. With your new tabletop now.


woodsawtoolFrequently Asked Questions

Do I need a riving knife?

A common suggestion is to install either an in-line or separate blade guard. These guards are designed to keep the workpiece from touching down on the table below and help prevent kickback, which can cause injury when you’re cutting narrow stock with your hands close by.

The downside of these devices is that they trap more wood chips than a riving knife would – meaning you’ll be cleaning them out much more often.

An additional point: A riving knife has no teeth, so it’s safe for use on any surface material as long as its sharpness remains intact (and this means not too many cuts through hardwoods). Installing one will also make your life easier if you ever

What material should my riving knife be made out of?riving knife thickness

All but one style are covered in steel for durability: cast iron; stamped steel; stainless steel; aluminum bronze alloy with steel backing.

Do I need an anti-kick back device?

If your table has anything other than plain edges, then yes! Specifically if there are any points in either direction that can cause pinch or sharp corners where pieces could get caught during contact with each other as they pass by one another while traveling across their shared surface area (such as when making cuts at 90 degrees).

How to Install Riving Knife on Dewalt Table Saw

Just loosen the knob about three turns, and push in while  lowering it into position. The splitter should slip off of the retaining pins with minimal effort .

Once lowered, tighten back up to keep everything from moving around. There is also an indexed stop for raising or lowering your blade guard when changing blades (it’s that little lever right next to where your raise/lower handle sits).

This will help prevent any accidents that might happen by forgetting this step when setting up your blade height before turning on the machine.

 

How to Remove Riving Knife on Dewalt Table Saw DWE7491

Mainly, you will need  to be sure that the riving knife is not obstructing any of your work.

You should also check the Dewalt Table Saw DWE7491 for contact between blade and table saw insert plate or castings by raising a board up in front of it with one hand while cautiously sliding the other arm under from behind (never reach over!) to feel for pressure as board passes through cutting area .

It’s important never to do this when power tool on! The guard could give way suddenly if held back too far; fingers would almost certainly be badly injured.

Final Verdict:

A riving knife is an essential tool for table saws to prevent kickbacks. So, If you don’t use a riving knife, it could lead to a dangerous situation where the wood may completely throw back and hit the user in his or her face.

This can also happen if there are other pieces of wood that get caught up on one side of the blade and cause it to twist which will then create enough force to shoot out at anything in its path including your body!

To avoid this from happening, make sure you always have your safety gear on when using any power tools such as goggles, gloves, ear protection etc. Always remember that safety first!

 

Leave a Comment