#1 Home Improvement Retailer

Internet #306939205

Model #TSS121

Store SKU #1003853454

Store SO SKU #1003622427

12 in. Sliding Compound Miter Saw with LED

Limit 5 per order
Save $20.00 (7%)
Apply Now
Save up to $100 on your qualifying purchase.
Apply for a Home Depot Consumer Card
  • Heavy Duty 15 Amp Motor with 3,800 RPM
  • Includes: 40T Carbide-Tipped Blade, Wrench, Dust Bag, and Clamp
  • Perfect for heavy duty jobs or DIY projects
  • View More Details
0 in stock
Text to Me

Frequently Bought Together

Save $20.00 (7%)

Product Overview

RYOBI introduces the 12 in. Sliding Miter Saw with LED. The heavy duty 15 Amp motor delivers up to 3,800 RPM for the power to make difficult cuts. It features a 1-1/4 in. dust port to help keep your work area clean. The 40-tooth Carbide-Tipped blade provides improved performance for fast, clean cuts and an LED Cutline Indicator for higher accuracy. Backed by the RYOBI 3-Year Manufacturer's Warranty, the 12 in. Sliding Miter Saw with LED includes a 40-tooth Carbide Tipped Blade, table extensions, a blade wrench, a dust bag, a work clamp, and an operator's manual.
  • Heavy duty 15 Amp motor to easily cut through larger material
  • Sliding head provides maximum capacity for up to 13-1/4 in. cross cut
  • LED Cutline Indicator and work-light projects cutline and illuminates material to improve accuracy of the cut and visibility
  • Extended miter range from 47° left and right to accommodate a wide variety of cuts
  • Miter stops located at the most common crown molding angles 0°, 15°, 22.5°, 31.6°, and 45° left and right for quick cut settings
  • Miter Detent Override: Quick action lever bypasses miter detent index points with one simple motion
  • Machined cast-in miter scale for accurate table alignment
  • Spindle lock for easy single wrench blade changes
  • 1-1/4 in. dust port provides connection to standard dust collection systems to help keep work area clean
  • Sliding miter fence provides support for wider material and easily adjusts for bevel cuts
  • Horizontal "D" handle for improved comfort
  • Electric brake stops the blade in seconds
  • 3-year manufacturer's warranty
  • Includes: (1) TSS121 12 in. Sliding Miter Saw with LED, 40-tooth Carbide-Tipped blade, table extensions, blade wrench, dust bag, work clamp, and operator's manual

  • Click here for more information on Electronic Recycling Programs
  • California residents

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Miter Saws

Exclusive15 Amp 10 in. Dual Bevel Miter Saw with LED Cut Line Indicator
current product
Exclusive12 in. Sliding Compound Miter Saw with LED
ExclusiveONE+ 18V Lithium-Ion Cordless 7-1/4 in. Compound Miter Saw and AirStrike 18-Gauge Brad Nailer (Tools Only)15 Amp Corded 12 in. Compound Double Bevel Miter Saw
Name15 Amp 10 in. Dual Bevel Miter Saw with LED Cut Line Indicator12 in. Sliding Compound Miter Saw with LEDONE+ 18V Lithium-Ion Cordless 7-1/4 in. Compound Miter Saw and AirStrike 18-Gauge Brad Nailer (Tools Only)15 Amp Corded 12 in. Compound Double Bevel Miter Saw
Save $20.00 (7%)
Miter Saw TypeCompoundSliding CompoundCompoundCompound
Cordless/ CordedCordedCordedCordlessCorded
Bevel TypeDual BevelSingle Bevel Dual Bevel
Power Tool FeaturesPositive StopsElectric Brake,Positive StopsKeyed Blade ChangeKeyed Blade Change,Positive Stops
Maximum Cutting Thickness (in.)3.53.5 6.5
Blade Diameter (in.)10 in12 in 12 in
Included AccessoriesAllen Key/Wrench,Blade(s)Allen Key/Wrench,Blade(s)Allen Key/Wrench,Blade(s)Blade(s)
Cuts ThroughWood Metal,Wood
View ProductView ProductView ProductView Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)
Table Length (in.)
Table Width (in.)


45 Degree Crosscut Capacity Maximum
90 Degree Crosscut Capacity Maximum - Left
90 Degree Crosscut Capacity Maximum - Right
Amperage (amps)
Arbor Size
Bench & Stationary Tool Type
Slide Miter Saw
Bevel Type
Single Bevel
Blade Diameter (in.)
12 in
Color Family
Construction Material
Acrylonitrile Butadiene Styrene (ABS)
Cord Length (ft.)
Cordless/ Corded
Dust Collection Method
2.5 in. Dust Port
Included Accessories
Allen Key/Wrench,Blade(s)
Maximum Cutting Thickness (in.)
Maximum Degree Miter Cuts - Left
Maximum Degree Miter Cuts - Right
Maximum Speed (rpm)
Miter Saw Type
Sliding Compound
Power Tool Features
Electric Brake,Positive Stops
Product Weight (lb.)
Tools Product Type
Power Tool

Warranty / Certifications

Manufacturer Warranty
3 limited warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.6
    out of 513 reviews
  • 81% recommend this product
Filter by:
Showing 1-10 of 513 reviews
Solid tool...
Solid tool
by Mike
  • Verified Purchase
1 person found this helpful
After a good while of debating. I pulled the trigger and bought this 12” miter saw. I was going t...
After a good while of debating. I pulled the trigger and bought this 12” miter saw. I was going to go with a smaller blade just because it would be cheaper, but I’m glad I went with this one. I do DIY projects and after having to cut straight edges with my skill saw for a while; it’s nice to be able to cut straight edges with ease. I gave it 4 stars because the plastic on the guard feels like it can break, also the sticker that’s in the back that is used to measure angles was peeling off on the first day. But overall I’m happy with my purchase.
by JAG
    • Recommended Product
    2 people found this helpful
    Works extremely well and so easy to use. My husband...
    Works extremely well and so easy to use. My husband did a new project over the youth sports pause in MN to keep us busy. The saw was put to great use and well worth it.
    by HomeDepotCustomer
    • Verified Purchase
    Bad boy
    This mitre saw is Michael Jackson bad! I absolutely love it. I had been looking at it for a while and decided to go ahead and purchase it. Powerful and accurate... I cannot wait to use it for more upcoming projects
    by Case
      • Recommended Product
      2 people found this helpful
      check this immediately after purchase
      I bought this saw to replace a compound mitre saw I'd had for years to cut trim and molding, but it wouldn't cut anything bigger than a 2x4. This saw is great, powerful and has a long enough slide to cut 2x12s and tall enough to cut 4x4s or 4x6s. I've had it now for 2 years and didn't realize till recently that it had a problem that wasn't the operator. The fence, a one piece cast and machined aluminum that's not adjustable, is not straight. With a straight edge all the way across the table touching the ends of the fence, there is a .090" gap behind the work at the point the blade cuts. This is OK for cutting long lumber or framing but if I'm only trimming an end where the work is just contacting one side of the fence, all cuts are crooked. Using the compound mitre for trim is impossible. Other than this issue, this is a great saw and I still recommend it, but check for this issue right away. By the time I realized it wasn't the operator, it was too late to return it. G Cowan Stockbridge Ga
      by Crash28677
        • Recommended Product
        15 people found this helpful
        It says it is compatible with up to 12" saws....
        It says it is compatible with up to 12" saws. It doesnt say that you need to mount the saw to 1/2" plywood prior to it fitting on the sliders. it doesnt tell you what fimensions to cut the plywood or length for the 5/16th hex bolts to use to affix the saw. If you update the manual to give people more guidance on the mounting board it would be 5 stars.
        by Jon
        • Verified Purchase
        6 people found this helpful
        Bought to cut 5 1/4 inch baseboard. It won't cut
        I bought the saw today because my 10 inch saw couldn't cut my 5 and 1/4 inch baseboard. Well to my surprise this saw cannot cut 5 1/4 inch baseboard for inside and outside cuts ether. I'm extremely disappointed will be returning the saw for one that will. I knew the 269 price was too good to be true. If you don't have anything over 5 inches it might be good for you.
        by Vin
          20 people found this helpful
          So far so good - cannot find the red laser feature
          the video shows a red guide laser, i cannot find the activation to turn it on. this should be an auto on feature so i will have to lower the star rating. that was a big feature i was looking for. the led light is not good and is useless outside.
          by thehman
            7 people found this helpful
            Great saw
            Love this saw, was considering a small blade but decided against it because I would rather have too much than too little. Box is big but the saw is huge. Easy to use, accurate cuts. Dust bag is...not great it catches the saw dust but a lot gets left on the floor but I can work on that. Shadow line is great no need to calibrate. Did buy a higher tooth blade but for now the stock blade works great. Very happy. Can't wait for more home projects.
            by DIYrookie
              • Recommended Product
              5 people found this helpful
              Great miter saw
              Before i get in the pros and cons of this miter saw, I'm first going to say, out of the box, there is nothing this saw can't tackle. The 12 in blade is big enough for pretty much any project you're trying to accomplish. This miter saw does not come with a laser which is a plus. There is a switch by the handle to turn on the LED light. light light shines on the object you are trying to cut which makes a straight ACCURATE line. A lot more accurate than any laser. i checked this miter to see if it was out of square, everything seem to match up. PROS 1.POWERFUL miter (cuts like butter) 2. Everything is square out of box. No adjustment needed for miter cuts 3.LED rather than laser. Please refer to pic to see what it looks like CONS 1. The biggest con of this saw is the bag. The bag is pretty useless. You can see the hole thats suppose to suck up the dust towards the middle of the saw. i felt it was not sucking it up good enough compared to other saws. It appeared to create more saw dust than normal. 2. Not really a con but this saw is heavy. Just tells me it is built well
              by Herb88
                • Recommended Product
                10 people found this helpful
                Showing 1-10 of 513 reviews