Cordless Metal Cutting Circular Saw Blades

Some years ago Panasonic released a 12 volt metal cutting circular saw with a 4-3/8″ blade.  My first thoughts were this looks like an as seen on TV tool.  Then they started selling and fast.  These little tools were great for cutting mild steel like strut rod and EMT.  As a matter of fact, cutting threaded rod was now very easy as the tool left a clean burr free cut.  Later Panasonic released a larger 15.6 volt version as well.  Today you can find cordless metal cutting saws from DeWalt, Bosch, Makita, Milwaukee and many more.

The applications for cordless metal cutting saws include cutting EMT, ladder rack, basket tray, wall brackets and as mentioned earlier threaded rod.  HVAC installers many times use them for cutting duct.  The duct acts as a sound chamber hence the cordless metal cutting circular saws are often called “screamers”.   Cutting solid materials is loud but not near as loud as cutting hollow material.  Hearing protection and safety glasses are a definite requirement.

You can buy saws that are specifically metal cutting saws.  These tools feature more blade shielding which is important as the tools throw off a lot of tiny metal shavings.  An added consideration is that these application specific tools can match the RPM of the saw to the blade making for more efficient cuts.  If you already have a cordless circular saw or even a corded saw for that matter, metal cutting blades are readily available for mild steel, thin steel as well as aluminum and other non ferrous metals.  We handle cordless metal cutting blades from Tenyru.  Tenyru is well known for top quality circular saw blades and their metal cutters are no exception.  We are a full line Tenyru dealer so if you don’t see the blade your are looking for in our store, give us a call.

Cordless metal cutting saws are truly a nice little addition to your install tools.  As mentioned earlier you will find them from many of the top cordless tool manufactures.  Many of them offer a bare version of the tool to keep the cost down as you likely already have the batteries and charger.  Give one a try!


Are Cordless Rotary Hammer Drills Worth The Cost?

Is a cordless rotary hammer rill worth the cost? While the initial outlay can be double or even triple what you are paying for a corded tool, consider a few facts that will help you decide if they are worth the spend.

Convenience. While we don’t often think of the convenience factor when looking at a power tool, really that is what it is all about with cordless tools. A cordless rotary hammer drill is always at the ready (assuming you keep your batteries charged!). You won’t be spending time looking for your power, running a cord and then rolling the cord back up. Open the case and drill, put the tool back in the case, easy.

Power. There was a time when cordless rotary hammer drills were only considered for use in lightweight applications like 3/16” holes. Today’s tools arecordless rotary hammer incredibly powerful rivaling corded tools of the same capacity. For instance the new Bosch GBH18V-26K24 will out work many corded hammers. When you pull the trigger, you can just feel the power. Most of these tools are now rated for thin wall core bits as well, making them even more useful.

Run Time. New battery technology is the driving force behind the increase in usefulness of all cordless tools. Most cordless hammers are packed with 2 battery packs and most of the batteries included have increased mah capacity. Remember in the world of batteries, all things being equal, mah represents your gas tank or run time, more mah, more run time. If you have stayed away from a cordless rotary hammer because of run time, trust me you won’t be disappointed.

Cord Cost. One hidden cost to consider on any cordless tool is extension cord cost. A good quality extension cord can be very expensive and they can have a short life span on the site with all the traffic. Cords are a common theft item on the site as well. And did you know, using long extension cords can actually damage your corded tool?

Safety. Safety, safety, safety! More and more time is being spent on job site safety and a lot of focus is being put on concrete dust, including that resulting from Cordless Rotary Hammerhammer drilling concrete. Here is where a cordless rotary hammer drill can really shine. Many of the current tools can be purchased as a fully self -contained dustless unit with the vacuum on board. Not only can you purchase a dustless rotary hammer cheaper than buying a corded hammer and separate vacuum, consider the space needed in your truck, each truck to haul the unit. Add to that dragging it around a busy site, tripping over the cords or working on a ladder, a cordless rotary hammer drill is a no brainer.

Warranty. Most power tools have a 1 year warranty. But did you know that most cordless tools have a better warranty, some between 3-5 years? Many of these warranties require you to register your tool, but that is really a small price to pay for such an excellent warranty.

Consider the points above when you are looking to add a hammer drill. I think you will find some real benefits from purchasing a cordless rotary hammer drill.

Bosch 11255VSR Bulldog SDS Rotary Hammer

bosch 11255vsr bulldog sds rotary hammer

Bosch 11255VSR Bulldog

The tool we sell day in day out for our low voltage contractors is the Bosch 11255VSR Bulldog SDS rotary hammer.  The Bosch Bull Dog series has a long and reliable history.  It’s predecessor, the Bosch 11224VSR Bulldog was one of the top selling rotary hammers in the world.  When we look back at how many of these tools we have sold over the years and consider the very few repairs we have had to perform, we recommend this line with confidence.  Most of the concrete drilling you will encounter in your low voltage, structured wiring environment can easily be handled by the Bosch 11255VSR Bulldog.  The optimal drilling range for the tool is 3/16″ to 5/8″ which means it will drill these size holes all day long, it’s main use was built around these sizes.  It is rated to handle a 1″ solid bit and up to a 2-5/8″ thin wall core bit all though we have contractors who typically use 1-1/8″ bits for 1″ EMT  without any trouble.  You can turn off the rotation and use a chisel in the tool as well if you have the application.  As much of your work is done off ladders, the D handle is a nice feature to have.  If you are looking for longer SDS hammer drill bits, up to 38” and core bits up to 4-3/8″ to fit the Bosch 11255VSR Bulldog Rotary hammer, you can find them on line at ConstructionFastening.Net