0648846053233

RIDGID

Model R4120

Internet #100618246

Store SKU #187336

15-amp 12 in. Compound Miter Saw with Laser

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Product Overview

The RIDGID 15 amp 12 in. Compound Miter Saw with Laser features a heavy duty motor that delivers up to 4000 RPM to help you power through hard woods and tough jobs. You can make bevel cuts from 3 to 48 degrees and miter cuts from 0 to 50 degrees for versatility for a wide variety of cuts. The Exactline laser alignment system makes it easy to align the blade with the cut line.

California residents: see   Proposition 65 information

  • 12 in. blade with 1 in. arbor for easy blade changes
  • Laser guide to help you accurately follow cut marks and keep the saw aligned with the cut
  • Sliding left fence to support taller materials and adjust for bevel cuts
  • Soft-touch controls for comfortable operation and grip
  • Front-mounted clamp for securely holding the material in place
  • Left side table extension for material support
  • 2-1/2 in. dust port to connect to standard dust-collection systems to help keep your work area clean
  • UL listed
  • 3-year manufacturer warranty
  • Lifetime service agreement with registration within 90 days of purchase (begins after the warranty period expires)
  • UL listed
  • For a lifetime of free parts, service, and batteries, register your item now at RIDGID.com
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Specifications

Dimensions

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Warranty / Certifications

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Customer Questions & Answers

8 Questions41 Answers

Customer Questions & Answers

15-amp 12 in. Compound Miter Saw with Laser
15-amp 12 in. Compound Miter Saw with Laser

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8 answers

Does this saw bevel right & left?

This question is from 15-amp 12 in. Compound Miter Saw with Laser
Asked by
dl
Traverse City
August 5, 2012
RIDGID 15-Amp 12 in. Compound Miter Saw with Laser
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Answers (8)

Asked by
New Hampshire
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Home Improvement Profile: Professional
May 28, 2014
Answer: 
No, it is not a dual bevel saw.
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Asked by
Georgetown, TX, USA
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May 16, 2013
Answer: 
Bevel Cuts are left side. The Miter Cuts are Left and Right to 48 degrees.
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Asked by
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May 10, 2013
Answer: 
both
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Asked by
connecticut
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January 10, 2013
Answer: 
Left only
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Asked by
Carterville, IL 62918, USA
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October 29, 2012
Answer: 
No this saw only bevels to the left. It miters both directions.
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Asked by
Mr. Portland
Portland, OR
October 25, 2012
Answer: 
How long does a repair take with the lifelong warranty? Will I need to buy another one or rent because some places take weeks and weeks to do some warranty repair.
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Asked by
Corona, CA, USA
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August 10, 2012
Answer: 
Yes, it bevels right and left. Whenever a miter saw is labeled "Compound" that is what it means.
Definition from Wikipedia: A compound miter saw has a rotating vertical pivot allowing the cutter head & blade to be tilted (or beveled) sideways in addition to the horizontally rotating table. This allows vertical & horizontal angled cuts as well as cuts angled in both planes.
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Asked by
Read all my Q&A
August 6, 2012
Answer: 
No, the RIDGID R4120 is not a dual bevel model miter saw. It is has left bevel capability only.
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7 answers

Does this saw have a brake?

This question is from 15-amp 12 in. Compound Miter Saw with Laser
Asked by
Bobby
Jasper,IN
February 15, 2013
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Answers (7)

Asked by
Fort Collins, CO
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April 17, 2015
Answer: 
Yes but with a questionable history of going bad and being extremely difficult to get covered under warranty.
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Asked by
New Hampshire
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May 28, 2014
Answer: 
Yes, it features an electric brake.
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Asked by
Georgetown, TX, USA
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May 16, 2013
Answer: 
It has an electric motor break. It is a great saw.
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Asked by
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May 10, 2013
Answer: 
no
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Asked by
Mechanicsburg, PA
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March 21, 2013
Answer: 
Yes
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Asked by
Littleton, MA
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February 16, 2013
Answer: 
No brake on this saw.
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Asked by
connecticut
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February 16, 2013
Answer: 
No it does not
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6 answers

how to install laser

This question is from 15-amp 12 in. Compound Miter Saw with Laser
Asked by
lon
January 19, 2013
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Answers (6)

Asked by
Fort Collins, CO
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April 17, 2015
Answer: 
It attaches like a thick washer for the arbor nut against one side of the blade.
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November 7, 2013
Answer: 
To Install the laser, follow the same procedure as you would to remove the saw blade. The hex bolt on the left side of the motor holds both the laser and the blade in place.
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Asked by
Mechanicsburg, PA
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March 21, 2013
Answer: 
The laser is a small round device that fits over the spindle. You have to remove/replace it when changing the blade, but a minor annoyance for great benefit.
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Asked by
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January 21, 2013
Answer: 
Those detailed instructions are provided under blade installation, on page #17 of the owner’s manual.
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Asked by
Littleton, MA
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January 20, 2013
Answer: 
To install the laser guide, follow the same procedure as you would to install a new blade. With the saw unplugged from the wall or power strip, pull back the blade guard to reveal a screw. Loosen the screw and pull the guard back a bit further to gain access to the nut holding the blade (and laser). Depress the blade lock button on the opposite side of the blade. You may need to rotate the blade 1/4 turn Read More
To install the laser guide, follow the same procedure as you would to install a new blade. With the saw unplugged from the wall or power strip, pull back the blade guard to reveal a screw. Loosen the screw and pull the guard back a bit further to gain access to the nut holding the blade (and laser). Depress the blade lock button on the opposite side of the blade. You may need to rotate the blade 1/4 turn to find the lock position. While depressing the blade lock button and with the blade in a locked position, loosen and remove the large nut in the center of the blade. Once the nut is removed, you should be able to remove the laser guide. Read Less
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Asked by
connecticut
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January 20, 2013
Answer: 
My laser was on saw
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6 answers

which direction do you turn the blade holding bolt to get it off?

This question is from 15-amp 12 in. Compound Miter Saw with Laser
Asked by
keith777
texas
January 13, 2013
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Answers (6)

Asked by
Georgetown, TX, USA
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May 16, 2013
Answer: 
This bolt is reverse thread, so Clockwise to loosen, and Counter clockwise to tighten.
Standard is left to loosen, right to tighten,
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Asked by
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May 10, 2013
Answer: 
left
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Asked by
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January 14, 2013
Answer: 
Page #17, owner’s manual: Turn blade bolt clockwise to loosen.
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Asked by
connecticut
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January 13, 2013
Answer: 
Hold the lock button and turn the nut in the middle of the blade down word
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Asked by
connecticut
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January 13, 2013
Answer: 
Up words back words threads so that would be to the back of the saw
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Asked by
Littleton, MA
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January 13, 2013
Answer: 
You turn clockwise, but you need to stop the blade from turning by holding the blade stop button on the opposite side of the blade at the same time you attempt to loosen the hex screw holding the blade. If you need more help, there are videos on YouTube for this.
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Customer Reviews

Rated 4.1 out of 5 by 84 reviewers.
Rated 1.0 out of 5.0 by Bent Fence The one piece fence came out of box bent so it's impossible to get an accurate cut. Just spent an additional $45 to buy a two piece fence set up. January 30, 2016
Rated 5.0 out of 5.0 by Features Price and Quality Oh My From driveway to project start took about 30 minutes. The Fence and Bladé were spot on right out of the box. This was a replacement for another brand of saw that just couldn't make the grade. I have been a DIYer for over 40 years and would recommend this saw to anyone looking for sure cuts, and ease of use. May 16, 2013
Rated 5.0 out of 5.0 by RIDGID Quality This saw assembles easily, maybe 10 min to set up. The laser worked fine for me with a few minor adjustments. Its extremely powerful and works like a dream. I think this may be my best purchase. I have almost all Ridgid tools that get used almost daily and the quality is second to none. Highly reccomended! October 29, 2012
Rated 4.0 out of 5.0 by Nice saw but lazer is junk. The saw cuts great but the laser is junk. The laser flew off during one of the cuts. November 16, 2015
Rated 1.0 out of 5.0 by Poor Motor, Wore out in under 30 Days with VERY light use. I bought this saw as the floor model. It was the last saw, since Ridged was bringing in a new design. The saw I purchased had never been used. I thought it felt under-powered at first and then, in less than 30 days, with light homeowner use only on 1-2 weekends, the motor went out. I returned it and bought a DeWalt. September 15, 2015
Rated 2.0 out of 5.0 by This saw has not been made since 2011 Please be aware that this saw is very old and some of the parts including the mitre locking lever have been discontinued. I have called Ridgid and other parts suppliers and everyone says this saw is very old and the part I needed is discontinued. January 6, 2016
Rated 1.0 out of 5.0 by Buy a better saw! Worked great until I need a replacement part. Rigid discontinued the throat plates and they are obsolete. So if your throat plate wears out, and it will, throw away the saw. They don't make the parts and said "sorry - there is nothing we can do." Can't find any after market stuff either. Look on their website and you can see what I am talking about. I'll never buy a product again that does not sell common replacement parts. Buy a better brand. Analogy: It's like telling your car dealer telling you they don't make your spark plug anymore and no one else does---- So throw away your car and buy another one from us. Don't buy this Yugo! January 25, 2013
Rated 5.0 out of 5.0 by Great Performance Excellent powerful miter saw...I have had this 12" Compound Miter Saw for four years without problems.. I make rustic style furniture with different grades of wood. I like that the miter cuts go further than 45 degrees with clean cuts. Since I had this saw I have cut over three hundred hickory tree spalings between 3" to 5" in diam. these tree spalings are very hard wood, cutting with no problems. I also purchased the Ridged stand which is also very good quality. I give this machine a 10 with all honesty. If you are a woodworker and need a saw that won't give you problems this is the one at a great price also. November 24, 2014
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