| DEWALT Nibbler DW898 Heavy-Duty 14 Gauge Nibbler, Power Nibbler, Electric Nibbler, Nibbler Metal Cutter |
| DEWALT Multi Cutter Saw DW872 Heavy-Duty 14" (355mm) Multi-Cutter Saw |
| DEWALT Chop Saw D28715 Heavy-Duty 14" Chop Saw w/ Quick-Change Keyless Blade Change System, Metal Cutting Chop Saws, Best Chop Saw |
| DEWALT Cut Off Saw D28755 Heavy-Duty 14" (355mm) Cut-Off Machine, Concrete Saws, Cut Off Saw |
| DEWALT Cut Off Saw D28754 Heavy-Duty 12" Cut-Off MachineConcrete Cutting Saw, Cut Off Saw, Cut Off Tool |
| DEWALT Chop Saw D28700 Heavy-Duty 14" (355mm) Chop Saw, Metal Cutting Chop Saws, Steel Cutting Chop Saw |
| MULTI-CUTTER SAWS, CHOP SAWS, CUT-OFF SAWS, BAND SAWS, SHEARS, POLISHERS, NIBBLERS |
| Known also as a steel chop saw. These portable hand operated machine are capable of cutting small sections of steel and other materials. They typically use composite friction disk blades to abrasively cut through the steel. The disks are consumable items as they wear away during the course of the work. The blade size is usually 355mm x 3.0mm with varying hole diameters to suit different manufacturer's shaft sizes. Larger saws have 410mm dia. blades. The saw is set up on a firm base and the material is clamped in position. Long lengths of material need their ends supporting. As the cut is made the blade abrades it's way through the material. A band saw is an electric or pedal-driven saw with a blade consisting of a long, narrow, flexible band of toothed metal. The band rides on two wheels in the same vertical plane with a space between them. Band saws can be used for woodworking, metal working, or for cutting a variety of other materials, and are particularly useful for cutting irregular shapes. The radius of a curve that can be cut on a particular saw is determined by the width of the band. From Wikipedia, the free encyclopedia |
| DEWALT Power Tools Online |
| A chop saw is essentially a lightweight circular saw mounted on a spring-loaded pivoting arm, and supported by a metal base. Chop saws are considered the best saw to get very exact, square cuts. Compound miter saws have been developed due to the limited cutting capacity of the chop saw. These are basically chop saws that can make bevel cuts as well as miter cuts. Operator Involvement The chop saw is operated by the user lining the saw blade with the user's mark. The user then positions the hands properly, clamping the wood to the fence with one hand and working the saw with the other. A trigger is depressed to activate the blade and the blade is pulled through the work piece. The left hand secures the material and the right hand stays firmly on the handle. Once the blade has been guided through the cut, the user guides the saw back to the upright position. |
| Portable Band Saws Five portable band saws that make short work out of cold steel By John Myrtle I remember the first time I used a portable band saw as a young plumber's apprentice. We were working on a large commercial project and needed to hang our piping mains above a drop ceiling. When my boss told me to make 50 hangers out of steel stock and threaded rod, I thought I'd be stuck there forever. Luckily he set me up with a portable band saw that cut through the unistrut like butter and cut threaded rod five at a time. A short time later, we started slipping pipe through the completed hanger assemblies right on schedule. Since then, portable band saws have been the kind of tool I can't do without. If you're in the field and have to cut any amount of metal stock on a regular basis, these tools will cut your production time and make cleaner and squarer cuts than a reciprocating saw or abrasive blades. And if you choose the right blade for the material you're cutting, you can get a spark-free, clean, and quiet cut–and more of them because band saw blades will outlast recip saw blades and cut-off wheels on chop saws. Test Criteria I tested five portable band saws including four corded models–the DeWalt D28770K, Makita 2107FK, Milwaukee 6232-6, and Porter-Cable 97724–and one cordless saw, the 28-volt lithium-ion-powered Milwaukee 0729-21. I evaluated each tool in the field for four weeks, followed by a stint in the shop, looking at cutting power and speed, balance and ergonomics, switches, blade changes, and extra features. What you Get All five of the saws came in their "kit" form. That just means they come with plastic cases in addition to a standard blade, and the cordless saw gets a battery and charger. It also means that the model numbers listed above are different than those on the tools and manuals. Power & Performance Photo: David Sharpe The two-finger trigger on the cordless Milwaukee makes it easy to run–even with gloves on. Portable band saws are generally best suited for cutting metals like channel and angle iron; we use different tools to cut other materials, such as a snap-cutter for cast iron pipe and a chop saw for plastic. The beauty of using portable band saws is that there is almost no setup, you can move them easily around the site, and they cut so cleanly and squarely that my guys even used them to cut baseboard heating sections, fins and all. The band saw cuts came out smoother than using tin snips and saved tons of time. For this test, we used the band saws to fabricate pipe and equipment hangers out of light metal stock. Most of the cutting was done at a freestanding tripod vise with the materials clamped solidly. During the four-week field test, we used the stock blades provided with each of the saws that proved suitable for most of our applications. Like any bladed tool, however, blade selection will greatly affect how well a band saw will perform. The coarsest blades (less teeth per inch) will cut faster, but when cutting a thin material you need to switch to a fine-tooth blade because a coarse blade will tend to grab and tear up your work. Fine-tooth blades will generally give you a cleaner cut, as well. All the corded tools run on 6-amp motors, except the Makita, which has 6.5 amps. The cordless Milwaukee V28 is powered by the company's 28-volt lithium-ion battery and performed right up there with its corded competition. After concluding that each tool performed well in the field, I brought them all into my shop to run side-by-side tests cutting through 3-inch-by-1/4-inch angle iron with brand new, identical 14-teeth-per-inch bi-metal blades. They all tracked well and allowed for fairly square and accurate cuts. None of them bogged down or jumped around during cutting, but I did notice differences in cutting speed between the tools. While running each tool all-out, the DeWalt and corded Milwaukee seemed to have a slight edge on the Makita and the cordless Milwaukee, with the Porter-Cable bringing up the rear. When you cut with a band saw, you let the weight of the saw do most of the work; if you try to force it, the saw just cuts more slowly or the blade snaps. |