Here are our recommendations for the 4 best spot weld cutters on the market. And after the reviews, we will go into more detail about what makes for a good spot-weld cutter.
Grizzly T10296 Double End Spot-weld Cutter
This is one of the highest rated spot-welders that you will find. It is just the type you want to own because it does not cut all the way through the two pieces of sheet metal that are welded together. It only cuts through the top piece of sheet metal and not the underlying one. This makes it a whole bunch easier to attach a new piece of sheet metal to the underlying panel.
What else is there to like about this well-made spot-weld cutter? This spot-weld cutter comes in a very useful kit. The kit includes six 3/8″ double-ended cutters and also includes three spring-loaded centering tips. The centering tips are great for guiding the bit into the center of the spot-weld so the cutting you do is accurate and smooth. The kit itself is very lightweight at only a little over seven ounces, and it’s compact enough to even fit in your smaller toolbox compartments.
The Grizzly T10296 spot-weld cutter we think is moderately priced for what you get and the extra bits mean there is no down time while you are waiting to get a bit sharpened or replaced.
Blair 11096 Cutter Set
This is yet another quality spot-weld cutter that comes in a kit. As we mentioned before, it makes it extremely handy to have extra bits on hand when one cutter gets dull or breaks. The kit has 3 spot-weld cutting bits and also includes an arbor assembly and two skip proof bits for drilling pilot holes in the sheet metal.
The kit (see full specs) is manufactured in the good ole USA. Its spot-weld cutting bits are made out of superior grade steel so they stay sharp for a much longer time. These bits are also designed to only cut through the outer layer of sheet metal and that again makes the underlying layer easy to weld new sheet metal back on to it. The bit has what is called an “annular design” that makes for drilling very smooth and burr free holes unlike regular drill bits.
The Blair 11096 spot-weld cutter always gets hi marks from the professionals that use them. This is a higher end spot-weld cutting kit but given how long the bits will last and how well they are made it is well worth the money. It should be on anyone’s list of the best spot weld cutters.
Kaufhof RM1905 3/8 Inch Double Sided Rotary Spot-weld Cutter
This precision made spot-weld cutter does not come as part of a kit but it is one that you definitely do not want to overlook because of that. Kaufhof’s spot-weld cutters are well known for drilling out spot-welds in a manner that leaves a very clean hole with no need for the filing away of metal burrs once the hole is done.
The unit comes with a double sided rotary blade so when one side gets dull you do not have to go buy a replacement spot cutter; you simply have to flip the bit around on its arbor assembly. It is spot-weld bit that not only cuts clean but it’s non-invasive too, so it does not distort the pieces of sheet metal that you are drilling through. That is a very important aspect of any spot-weld cutter.
It is a very inexpensive tool and works very well for the small price you pay for it. Hands down, it’s one of the best spot weld cutters for the money.
Blair Equipment 11090N Rotabroach Cutter Kit
If you are looking for a kit type product that is highly rated and makes spot-weld cutting simple, than this kit from the highly respected Blair tool company will most likely be perfect for you.
Not only does this kit (see full specs) have spot-weld cutters that drill smooth, burr free holes time after time but it also contains tools that can do such things as rustproofing. Best of all when it cuts out a spot-weld it does so in a way that does not damage the bottom piece of sheet metal at all.
The kit is lightweight and compact so it stores easily in any toolbox and comes complete with 7 different sized spot-weld cutters, 1 arbor, a hole punch and two pilot hole bits. It’s USA made and comes with a complete money back satisfaction guarantee.
Characteristics of a Very Good Spot-Weld Cutting Tool
What are the characteristics that make for the best spot weld cutters? For starters, it is an absolute must that they are able to take out an entire spot-weld in just one single pass.
They also have to perform in a way when cutting that leaves very few burrs and that leaves the holes drilled with them extremely smooth also. This makes it very easy to work with that piece of sheet metal again that just had the spot-welds removed.
A good spot-weld cutter will also fit easily into the chuck of normal size hand held drills and should drill out the spot weld in a way that does not damage the bottom piece of sheet metal.
There is one thing that is very important when it comes to cutting out spot welds. Make sure that you drill a small pilot hole through the very center of the spot weld before using the cutting bit. This will act as a guide for the spot-weld cutter and you will get a nice straight hole each and every time.
Most people also find that a spot-weld cutter works best after you apply cutting oil to the bit and cut the hole at a slower speed. This tends to leave smooth holes with no burrs and it will also extend the life of the cutting tool.
If you are the type of person that does a lot of metal work then a spot-weld cutter can be an invaluable tool that should be added to your inventory. You can never go wrong with purchasing and adding to your toolbox any of the spot-weld cutters that were mentioned above.