Cinder blocks are a popular building material because they’re inexpensive and durable. But, they can be difficult to cut with standard tools. A reciprocating saw is an ideal tool for cutting cinder blocks.
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In this blog post, we’ll show you how to use a reciprocating saw to cut cinder blocks. We’ll also provide some tips for making the job easier. Let’s get started!
What are Cinder blocks?
A cinder block is a small unit made from Portland cement and sand, mixed with water. The mixture is poured into forms and allowed to cure until it forms a hard mass. Then, the blocks are stacked on top of each other to form walls or solid structures.
How to cut cinder block reciprocating saw step by step:
Here are some steps
Adjust the blade depth to its maximum setting. You need to use a standard blade that has a width of 7-3/8 inches to cut through a solid block.
Use a drill and a 3/16 inch metal bit to make starter holes at each corner of the area you want to cut out.
Drill three or four additional holes in each corner, making sure they’re all equidistant from one another. The more holes you drill, the easier it will be for the saw blade to penetrate the material.
Your first cuts should be made from top left going down and then from the top right going across until you finish up with bottom left going down and bottom-right going across. This will ensure that you’re cutting straight down and penetrating as much of the cinder block as possible.
The reciprocating saw blade will need to be removed from the handle for a moment so it can fit into the starter holes you’ve made in Step 2 above. The easiest way to remove a reciprocating saw blade is by placing your hand on top of the saw’s body, directly underneath where the blade attaches.
Then squeeze your fingers together on both sides of the handle simultaneously until you feel the pressure release.
At this point, pull upwards quickly on the blade with one hand while still squeezing it together down on both sides of the handle with the other hand until it pops off.
Make sure not to rush this part. To cut through a cinder block, there is no such thing as going too slowly. You’ll need to use firm and constant pressure during the entire cutting process in order to get through the material successfully.
If you try to hack away at it like it’s a piece of cake or something easy, you’ll be left with nothing more than a chipped and battered saw blade and an even bigger mess on your hands when all is said and done.
Once you’ve finished using the reciprocating saw, there may still be some un-cut portions inside of the starter holes that remain blocked out by cinder blocks stuck together within each other.
Take care of any such chunks that are leftover by drilling into them carefully from within the starter holes until they’re completely gone.
To seal up each hole you drilled, apply a generous amount of construction adhesive inside before setting any blocks back into place. Just because the cinder blocks are now cut doesn’t mean that they aren’t still useful on their own or that you won’t want to use them for some other project at a later date down the road.
It’s going to be impossible to find matching cinder blocks if you were planning on salvaging them from an existing structure and using them again somewhere else so treat your cinder block job as a one-time cutting project only.
By finishing with construction adhesive, it will also ensure that no debris or contaminants can get in there from outside sources making what you’ve just done on the inside completely airtight and sealed for good.
Have fun with whatever you’re planning to use your cut cinder blocks for next!
1. Make sure you know where your hands and fingers are at all times and never let them hang over the top of the cinder blocks as they lie on their side or upside down.
2. Don’t ever stand directly above a cinder block that has been laid out flat on its side with the bottom facing up.
3. Always remember, the reciprocating saw comes with a blade so you’ll want to be extra careful not to cut yourself or someone else when using it without any guard around the material.
Is there a specific blade that I should use to cut cinder block?
A cinder block cutting blade is ideal for this project. You can buy them online or at your local hardware store, but there are specific ones made to be used specifically on cinder blocks because of their shape and versatility.
Is it possible to cut a cinder block without a reciprocating saw?
It’s certainly not the easiest material to cut without using a reciprocating saw. If you opt to do it any other way, expect very slow progress and lots of wear on your regular tools.
The only thing that should be used to cut cinder blocks is a cinder block cutting blade which only the reciprocating saw can provide.
What are some of the dangers of cutting cinder block with a reciprocating saw?
If you don’t wear the appropriate safety equipment and then attempt to cut through a cinder block, there’s a very large chance that you’ll end up injuring yourself with flying pieces of granite coming off in every direction.
Be sure to wear shoes, thick gloves, goggles, and always stay clear away from where any chunks may fly or fall when cutting cinder blocks.
How do I avoid getting dust in my eyes when cutting cinder block with a reciprocating saw?
When cutting through cinder blocks, it’s very likely that you’ll end up with a good amount of dust in the air. It’s important to take precautions before getting started by wearing goggles and thick gloves so nothing can fall into your eyes or get in them while standing near any debris.
In this article, we showed you how to cut a cinder block with a reciprocating saw. The key is using the right blade and following these simple steps. Safety is always important when cutting any material, so make sure to use caution and wear the appropriate safety gear. With the right tools and know-how, you can easily cut through a cinder block like butter. Have you tried this method yourself? Let us know in the comments below!
I hope you found this information helpful. If you have any questions or comments, please leave them in the comment section below.