Bosch TS1003 Table Saw Left Side Support Extension

 (60 customer reviews)

The extension is a great add to the Bosch 4000 saw. It installs easily and operates smoothly. The extension is all steel construction and uses aluminum brackets to attach to the underside of the table. The extra support is great for crosscutting long boards and definitely saves time not having to setup sawhorses or roller supports.

A tip to the perfectionist group - the extension does have a minor amount of slop/droop (about 1/16" in my case) when extended. I remedied the problem with one 1/4" internal tooth lock washer placed between the bracket and the body of the saw on both the front and rear. Torque it down to flatten the washer as much as possible being careful not to strip the saw housing. Placing the washer on the inside bolt of the two keeps the extension fairly level throughout the span of the extension.

Customer Video Review Length:: 3:58 Mins

There seem to be plenty of conflicting reviews on both the left side extension and the outfeed extension, and I've made this video to clear them up. Issues cleared up:
- The front bar for the left side extension is short enough to not hit the red lever for the right side extension.
- Both left side extension and outfeed extension come with a stop knob for securing the extensions either open or closed.
- Both extensions sag just a little, which I fixed by placing a washer (approx 0.043 in thick) between the brace and the tablesaw for the _back_ bolt on each bracket. This modification brought it very close to level, for just over $2 in washers at my local big box hardware store.

I do say a few odd words here and there in the video (quarters when I meant washers, etc.) But I'm sure you can figure it out.

Overall review: These were what I expected, fit my 4100 series Bosch worksite table saw, and were easy to install following the...Read more

My left side support arrived with the threads missing from one of the support rods. It appears to have been misformed during the machining process. I had to contact Amazon for a replacement, which they promptly sent out at their expense. They also paid for return shipment of the defective unit.

Others have noted that they shimmed the inside mount slightly to compensate for droop. There is a bit of adjustment in the support arm itself- allowing you to adjust it up by a 16th or so.

Here's a tip: If you purchase the rear support as well, you'll notice that the aluminum support brackets are tapped and include a 'set screw' which is useful to lock the position of the support both for transport, and during use. For some reason, the left support does not include this feature. I picked up a similar thumb screw/ set screw from my local hardware store and added the same functionality to my left side support. Just drill a hole in the thickest part of the aluminum support,...Read more