TBB used an iGauging 35-125-4 digital dial indicator to measure the accuracy of the blade position to the table miter slot. This instrument has an accuracy of .0005 inches. As part of the table saw set-up, TBB installed a new Diablo blade in each saw and these never-before-used blades were used in the measurement test. To ensure that any wobble in the blade did not enter into the test results, TBB marked a single tooth as the reference point for the measurement. The blade position was moved to the front of the saw to allow the iGauging dial indicator to hit the tooth immediately behind the carbide tooth, The iGauging dial indicator was calibrated and the indicator had a reading of zero.
Contractor units are the next step up from portable (or jobsite) table saws. A contractor table saw has a worktop and motor assembly that looks a lot like a cabinet model, only it’s missing the cabinet! Contractor units aren’t quite as portable as a job site saw, but they’re about half the weight of a cabinet saw. They pack a lot more power than a portable unit, and their cutaway stands make them fairly manageable for folks who have helpers to assist in getting the saw off the truck and set up at the site.
For carpentry projects or as a starter saw, the DeWalt DW745 receives solid reviews. Though it doesn't have the capacity of the Bosch, owners say it's well made and easy to adjust. The rack-and-pinion fence earns kudos for accuracy. The saw weighs just 45 pounds and can even be hung on a workshop wall for storage; an optional is also available. The three-year warranty is another plus.
Porter-Cable comes in as the most expensive of the value group, but also with the best overall performance in it. Of the three saws in this class, it had the best cutting power and also came in the top spot overall for height and bevel adjustment thanks to independent wheels. This may seem like a small consideration, but when you actually need to cut accurately beveled pieces, the adjustment wheel is a huge benefit over sliding the front height adjustment around.
It has a machined aluminum table which is extremely precise. We like the Dewalt’s cast metal table for the price, but the company don’t list the material, and we suspect it’s not nearly as rugged as aluminum. The Bosch’s table is much better. It’s rugged, sturdy, and more consistently even than the Dewalt. The table makes this one a smarter choice for fine woodworkers or pros who need superior alignment.
For centuries, the job of the sawyer was, quite simply, to saw logs into lumber. Working in two-man teams, a pair of sawyers would use massive saws -- called whipsaws or pitsaws -- to cut felled trees into workable planks with their own muscles as the motive power. The job was exhausting and often dangerous, yet necessary to create the precious lumber used to build everything from homes to railroad bridges.
This is a truly great saw, except that it is really tough to adjust the blade and rip fence for parallel. Once adjusted though, it is a fine piece of engineering. What I like best is that the saw is built for the job site. It is extremely beefy, but no too heavy. In my opinion, it strikes a nice balance. Its cart stand is the best in the industry, bar none. Once adjusted, the saw returns to its settings extremely well. It is obviously built for the long haul, and should last a contractor many years. I would definitely purchase this saw again. Now with the things that I wish were better. First, adjusting the blade for parallel is just plain hard. Mine was out from the factory by 4 thousandths. It is a trial and error process, and the instructions suck. Here's what to do: 1. Loosen the four screws indicated in the instructions. Starting from behind the saw, center the blade housing in the rear left to right as best you can, then tighten one screw not quite snug (you want the housing to rotate on this screw when you adjust the front). Next move to the front of the saw and loosen the lock lever for blade angle adjustment (the housing won't move unless you do). Now, begin experimenting with holding the housing at 90 degrees with one hand while sliding the housing back and forth with the other until square. When you think that you are close, lightly tighten one of the front housing screws. Check for parallel (look for videos on how to check a table saw blade for parallel), then tighten the blade angle adjustment lever. With these screws and the lever tight and locked, check again for parallel. If it is still good (I got it to 1/1000 inch of parallel), then lock all the screws and check one more time, if it's still good, then you are done with blade housing adjustment.
The DEWALT DW745 and the Bosch 4100 are pretty evenly matched in having plenty of power and not-so-hot dust collection. I you’re looking for a light weight saw, the DEWALT comes in ahead since it weighs almost half as much as the Bosch. It is also the less expensive choice by far. The large work table, expanded cutting capability, and its Gravity Rise feature (with solid rubber wheels that make it easy to be rolling across rugged terrain at a jobsite) make the Bosch a Cadillac among Pintos, but, of course, that luxury comes with a price tag.
If you’re looking for the best table saw out there, then there’s no better choice than the Powermatic 1792001K PM2000. This is an amazing cabinet table saw that features a 1-phase, 3 HP motor with rout-R lift and Accu-fence system which set a new standard for innovation through thanks to the saw’s large body design and an incredible range of patented features. Almost each feature of the 1792001K PM2000 sets a new standard by which every other cabinet table saw on the market is judged, so you can have the peace of mind that this is not your regular cabinet table saw.