Question about Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

My ROTO ZIP RZ10 burned out after less than 3 hours (Total time, not continuous use) I'm using it with 1/4" shaft Kutzal bits for wood carving. I keep it clean, blow it out etc. Does this tool have a built in overload?

Posted by on

  • 3 more comments 
  • rvc6 Mar 02, 2009

    Hi, thanks for your response. I use it, the rotozip, for carving wood with kutzal bits, and never had a problem. This morning, 3-2-09, went to carve and for some some reason it heated up immediatley, than stopped completely, dead. I let it cool down, nothing. One thing I did notice was when I plugged it, turned it on, and shook it, it tried to start. So I figured before I try taking it apart, I'd see if anyone else had this experience.


  • rvc6 Mar 02, 2009

    Thanks, I called Rotozip, toll free number, nice people. They said send it to their service in Racine WI. and they'll fix it.

    Thanks again

  • rvc6 Mar 03, 2009

    Hi, I want to thank all for responses on my ROTOZIP. I'm going to push the envelope and ask a few more questions: Can anyone recommend a power tool for my 1/4" shaft Kutzal bits? For years I had a SEARS die grinder, worked fine but only had one speed, FAST! about 25,000 rpm. (I think) it finally bit the dust, which is why I bought the ROTOZIP (DREMELS are great but too small). One more question: how do I clean gum, pitch(?) out of my bits?

    Thanks again, Bob

  • Jim London
    Jim London May 11, 2010

    Hi again, Well, the symptoms you describe are typical of bearing failure, but generally if you spin the bit you can feel the gravel like feeling of bad bearings, that is if it will move at all. Check the brushes, the cooling fins and the fan. The earlier models were not as durable as the newer ones. A lot of folks wanted a bigger rotary tool than the Dremel and not as big as a router so they used the Rotozip for that purpose.( like you are using the kutzal bits). The Rotozip was designed as a spiral saw and can't take much downward pressure, which may cause the failure of the shaft end at the rear of the unit. In any case you will find the problem when you open it if it is out of warranty. Good Luck and let me know what you find!

  • Jim London
    Jim London May 11, 2010

    Hi, When you say burned out, what do you mean, did smoke roll from the unit? I have had 3 rotozips and do not believe they have overload protection as I have used mine in construction till they were so hot you needed gloves. The first one, I had threw the fan and it was within a year. ( first year they came out) I sent it back and they sent me a new one with extra bits and the latest improvements. They seem to stand behind their products so since you only have three hours on it, I would return it under warranty.I would like to know the failure mode.


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 256 Answers

Hi again, I think you will be happy you opted for the warranty solution, I told you they stand behind their products, Thanks for sticking with it and I'm glad we could help Fixya!

Posted on Mar 02, 2009

  • Jim London
    Jim London Mar 03, 2009

    Hi again, I am going to post your question in the lounge where I can get some good answers. I don't know if it will help or not but in my shop I have a flexible shaft grinder that has its own motor that I use for some detail work but it is like free handing but you can see better than you can with the Rotozip! Thanks for your rating and I will post back to you if I get some good responses.

  • Jim London
    Jim London Mar 08, 2009

    Comment by Idaho_Biker
    March 07, 2009 10:05 pm

    Depending on the Type of Wood, You can either Use Grain Alcohol (91%), or Mineral Spirits to Clean Pitch(Gum)from Your Bits...
    Opinion": Rotozip & Dremels are BOTH too light Duty, I Prefer using
    Foredom or Dumore (I use a 1/3HP Foredom with a 48" Flex Shaft &
    Suspended Motor-I can Chuck up 1/8", 1/4" & 3/8" Collet-Type Bits,
    and a 5/8" Tool-Holder/Pencil Grip Style...I Use my Foredom Mostly for
    Aluminum Polishing, Detail Work on Lathe(Wood)Projects, and Free-hand
    Carving on Custom Wood Signs)..It's NOT the "RPM's" it's How Much
    TORQUE your Tool Has!!
    So, does this mean We get to "Share" the Rating Solution, LMAO....


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Rotozip video

Try a light penetrating oil on the threads, and allow time for it to work. Sometimes working the nut in both directions, back and forth, a little at a time fill allow the penetrant to lubricate the threads better, allowing it to be more easily removed.

Best regards,


Aug 23, 2014 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

How to put a rotozip rz10 back together

Hardest part is getting the trigger mechanism back in the right position while putting the screws in place. Everything has a slot/groove it fits into before both outside covers can be put together. One side will be easier to hold the pieces while the other simply covers them. A spot of glue (elmers) may help to hold trigger in place and the wires.

Apr 22, 2013 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

Lock bolt on rotozip rfs1000 is jammed. is it right or left thread?

Did you ever solve this problem? Mine just did the same thing right after I put a new blade on for the first time I ever used it

Sep 24, 2012 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

I have Model RF1101 Router mounted in a router table and I'm trying to cut a dovetail groove in a workpiece. I first use a straight bit with 2 flutes to hog out a 1/4" deep groove. For some reason...

I've had this problem with off shore bits, where the machineing on the shaft is slightly under spec. The bit wobbles out of the chuck because it can't be tightened enough. Try a different bit.

Feb 02, 2011 | Saws

1 Answer

When i pulg in an turn on my roto zip model rev01 the lights come on but saw does not, took apart an brushes looks good, what else could be wrong?

depending on how old the saw is, the trigger may be shorted out. try and get into the trigger assembly to confirm.

Dec 19, 2010 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

Saw just stopped

I used my Rotozip once, off and on for about one hour total time. I put it away, very glad that I had bought it. It did a great job by the way. I did not need it again for another year and a half. Recently, I had another "honey do" project to take care of, so when I took it out of it's tool bag, I was certain it would take care of my project in no time. I plugged it in, hit the switch and nothing. So, I plugged it in another outlet... nothing. Shook all the cords to check for a broken wire... nothing. No power... nothing. Talk to me, is there a circuit breaker in there somewhere or do I have to send it back to Rotozip?

Mar 29, 2010 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

While using the masonry cutting blade, the unit just quit. Have not be able to get it started. Have let it sit for hours, and now days and it still will not start.

start with the cord. do a continuity check on it. then check the switch. then check the brushes, are they touching the commutator and moving in the slot. let me know if this does not work.

Mar 16, 2010 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

I need rotozip bit change instructions

Press in shaft lock button, use supplied open-end wrench to loosen collet--RH thread and remove bit by hand.

Jan 31, 2010 | Bosch RotoZip Spiral Saw RZ10 - 2100

1 Answer

While using the rz10 tile cutting wheel the saw has no tourque any kind of resistence the wheel stops

The only tile that they are any decent at cutting would be ceramic, slate, or terracotta. Anything else is way too hard and even cutting the listed tile it's no joy to do. I would suggest using a 4 or 4 1/2" grinder with a diamond blade coupled with a wetsaw. hope this helps and good luck.

Jan 02, 2010 | Bosch RotoZip Spiral Saw RZ10 - 2100

Not finding what you are looking for?
Bosch RotoZip Spiral Saw RZ10 - 2100 Logo

Related Topics:

2,005 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bosch Saws Experts

River bottom

Level 2 Expert

174 Answers

james allen
james allen

Level 2 Expert

109 Answers

Parson's Repair...
Parson's Repair...

Level 2 Expert

177 Answers

Are you a Bosch Saw Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides