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Miter Trimmer

Cuts off micro-fine slices for the most precise fit.
Item #
88% of 100

No more planning, no more sanding, and no more tear-out on pre-finished frame moldings with this revolutionary miter trimmer! The secret is in the laminated blade with a shear cutting bevel and razor-sharp edge. It lets you cut off micro-fine slices for the most precise fit. Totally adjustable for 45 degree and 90 degree cuts.

(1) Miter Trimmer
More Information
Brand Rockler
Weight 30.6000
4.4 / 5.0
47 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
So precise! I love it.
March 10, 2020
2 months ago
I like it
I like my miter trimmer and I especially liked the price.
February 24, 2020
2 months ago
Woodworking Experience:
Great! It works exactly as advertised.
Great! It works exactly as advertised. It takes a little practice but makes perfect miters. The blades are exposed so I store it in it’s box. It needs to be covered so you don’t accidentally touch the blades.
February 15, 2020
2 months ago
Woodworking Experience:
Keep hands away, really; your hand will fit, so keep it away from the blade.
I've tried all the things I'm sir everybody else has tried to get super accurate miters. The thing does it every time.and the wings are super stable making them super functional. An electronic angle gauge will give you a perfect set up on any angle.
February 11, 2020
2 months ago
Woodworking Experience:
Miter Trimmer
Arrived promptly. Took longer to remove it from the shipping container than setting it up. A quick wipe of the protective oil coating, and less than 30 seconds later I was trimming. Test cuts, 45 and 90 degrees, were clean and dead on. Immediately put it to use and asked myself, "Why did it take me so long to buy this device?" Added a home made extension plate with a T slot rail with flip stops. Truly an outstanding tool and worth every penny! If you ever wanted to make clean and accurate miters this is the right tool. Don't wait 43 years like I did!
February 7, 2020
2 months ago
Woodworking Experience:
Great Tool
This is a great tool for sneaking up on a good fit and the sharp blades make taking a "hair" off of molding a breeze.
October 26, 2019
6 months ago
Woodworking Experience:
Broke the Gear - but that's OK - it's not expensive to replace
I have used this tool for at least 10 years with great success, makings thousands of perfect miter cuts. Unfortunately the "gear" (#12 on the parts list) that moves the miter blades in conjunction with the handle broke (the gear snapped in 2 pieces). I went ahead and ordered a new miter trimmer to replace my existing unit, but was curious if I could replace just the gear and repair the older unit. I called Rocker Customer support and they did not offer the gear. Turns out Grizzly Industrial does and it's only $4 + shipping. At that price, I ordered two gears. I thought it wasa Rocker specific tool. It's not. Other vendors carry it and carry the parts to service them as well.
July 8, 2019
Woodworking Experience:
Worth every penny
Like most people I had trouble getting all 4 corners of a picture frame square and closed. This trimmer makes the miters perfect every time, you just have to remember to only shave very thin amounts at a time. My first cuts were just on 2 pieces of scrap birch trim. I cut the miters on my miter saw and then trimmed both miters with this tool. When I put them together the seam disappeared. I then added a little glue and put together with just a little pressure between fingers and joint was so tight no further clamping was needed. I have since used several times when adding trim around a banquette and the were perfect. Should have done this years ago.
June 27, 2019
10 months ago
Great tool, great service!
June 15, 2019
10 months ago
Woodworking Experience:
Works well; performs as advertised
Performs the job very well. Precision cuts are very accurate. Heavy base and razor sharp knives are what you want from a quality tool. Does a great job on 45 and 90 degree angles. It would be nice if there were more stops drilled into the base to allow more angles (such as 67.5) for making other types of frames (such as octagonal)
June 6, 2019
10 months ago
Woodworking Experience:
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Browse 12 questions Browse 12 questions and 68 answers
Why did you choose this?
Rockler Store
Price and quality.
William Rowe I on Jan 19, 2020
This item is known to do a good job.
David M on Jan 16, 2020
Price and quality.
William Rowe I on Jan 19, 2020
Making frames for my artwork. My table saw jig is good but I need smoother more accurate mitres. Hoping this does the trick.
Arlston A on Jan 18, 2020
This item is known to do a good job.
David M on Jan 16, 2020
I have been waiting for this to go on sale. I’ve been watching used old Lyon machines go for close to the sale price and shipping was expensive. Hope I’ve made the right choice.
Dan O on Jan 10, 2020
Always have had problems getting tight corners on my frames. Hopefully this will help.
rob W on Jan 4, 2020
I am familiar with this type of tool, and the reviews sounded positive.
fred s on Jan 2, 2020
Used this tool in a picture framing class. It works like magic!
Charles C on Dec 11, 2019
We have recently purchased several tools from Rockler, and found the quality to be excellent. I have no issues with any of their tools, and would recommend Rockler without any questions
Rex N on Aug 2, 2019
To get more accurate, cleaner miter cuts for making picture frames.
Laura B on Jun 29, 2019
I had one before, it was stolen
Philip P on Apr 25, 2019
to get a perfect 45 on my frames since the mitre saw is not accurate so this will shave off the imperfection.
Carla S on Mar 30, 2019
Ty B. on Mar 26, 2019
To make picture frames.
B E on Mar 24, 2019
I believe in the right tool for the job. I've used one before and, this is the perfect tool for clean, accurate miters.
Wyatt S on Feb 23, 2019
I will be making man y picture frames in the near future. This product is perfect!
Bob C on Feb 2, 2019
Have used them before good reviews
Edward S on Jan 15, 2019
on the advice of a friend
Steven M on Dec 12, 2018
For making picture frames.
Gerry G on Nov 12, 2018
The best way to get a back cut on casing
Karl B on Nov 12, 2018
I don't know
Dean Eric S on Jul 11, 2018
I have used it before, and it is a nice tool.
James M on Jun 3, 2018
Fine carpentry and cabinet fabrication- installation
J. Trenton B on May 28, 2018
based on youtube reviews looked good for picture frames. Bought fro Rockler because I got a 20% off email offer.
PETER O. on Apr 28, 2018
I need one to make more accurate cuts on my picture frames. Can't wait to get it.
David C on Dec 21, 2017
My brother likes to build his own picture frames and make other small precise wood pieces. This seemed suited to his needs.
JS2012 on Aug 11, 2017
Needed precise cuts for picture frames
Marc M on Aug 6, 2017
I make picture frames and I need the miters to be as clean as possible.
John P on Jul 30, 2017
To use for clean cuts with picture frame moldings.
Daniel S on Jan 10, 2017
To assist in more precise cuts when making frames, boxes, and other mitered edges.
Brenda R on Dec 4, 2016
I have used one of these years ago and it always trued up any miter joint. I am doing a variety of projects and want to have better miter joints
Robert M on Jun 8, 2016
After reviewing and seeing this product in action, the accuracy is amazing for perfect mitered corners.
William S on May 1, 2016
I need to make a lot picture frames. I've been using a table saw and jigs... but I used one of these years ago, it made great easily cut miters, so I thought I would get one. They are fantastic for cutting and trimming perfect miters.
Steven S on Mar 27, 2016
as precise as you can get, used to have a large floor / step model
James T on Mar 5, 2016
Great price.
Damon P on Jan 1, 2016
I used a friend's and was sold
Deno on Nov 4, 2015
Looks very solid and accurate
Joe S on Oct 21, 2015
familiar with your products
Anthony R on Jun 25, 2015
I have two good chop saws but I always wanted one of these. I use to use one at the hood museum and found it not crushing the finish side like I thought it might.<br />
Carl C on Jun 18, 2015
want sharp clean joints
tim c on Jun 18, 2015
cabinet refacing tool
Daryl S on Apr 20, 2015
I had one in the past, it did a good job other then the 45 degree angle did not stay in place until I drilled holes for it. I am hoping there has been some changes so it will keep the angle when cutting 3 1/4" trim without moving
Will B on Apr 18, 2015
Making frames for my artwork. My table saw jig is good but I need smoother more accurate mitres. Hoping this does the trick.
Arlston A on Jan 18, 2020
I have been waiting for this to go on sale. I’ve been watching used old Lyon machines go for close to the sale price and shipping was expensive. Hope I’ve made the right choice.
Dan O on Jan 10, 2020
Can I buy a handle for the Miter Trimmer ?
Butch on Oct 27, 2015
Where is this tool made/manufactured?
A shopper on Jun 18, 2015
BEST ANSWER: Says made in Taiwan on the box.
Can this cut/trim a 1 x 2 (3/4" x 1.5") piece of oak?
Wood Guy on Apr 16, 2016
BEST ANSWER: No problem. This tool is designed for such tasks. Keep in mind, this is a trimmer. It is prudent to take several paper-thin passes as opposed to trimming to your mark on the first attempt. I have trimmed pieces up to
3 1/2 x 2 with ease.
One thing I would point out is to keep the trimmer oiled with a light oil when stored, or make sure it is stored in a dry place.
Trim a scrap of wood to take off the oil the first time you use it for the next project if oil on your trimmed piece is and issue. This is a tool that makes me wonder how I got along without it.
It is spendy but worth it if you demand precision and don't want to waste good wood.
how many cuts on average per set of blades?
gerald m on Oct 16, 2015
BEST ANSWER: Gerald, I trimmed an 1800 sg ft basement remodel and blades are still in good shape. this is a trimmer for very paper thin cuts. if you try and cut bigger chunks it won't work and will dull out the blades. hopes this helps.
What is the largest piece of wood this can handle?
Dave307 on Dec 30, 2015
BEST ANSWER: Because it cuts on the diagonal, the width of the board you can trim depends on its thickness. a 3/4" thick board can be between 5 and 5 1/2 " in width. A 1 1/2" thick board has a max width of approx. 3". This is all for a 45 degree trim. Hope it helps.
Are there any additional options you can add? In particular, measuring tool to get exact same length pieces for a picture frame and a top cut attachment for molding:
CHARLES O on Dec 1, 2019
BEST ANSWER: The nature of the tool does not lend itself to that particular task but you could anchor the trimmer to a tableset an auxilary sopport arm and a positive stop that would limit the placement of the work piece
What do you use for blade guards when not using?
James F on Dec 30, 2017
BEST ANSWER: Are you guarding the blades from being knocked? ... or are you guarding your fingers from the blades? In either case, I just move the miter trimmer off my work table and onto a nearby shelf. Better to keep it mobile, and occasionally apply a trace of machine oil.
Will it cut molding 6 inches height??
Joe M on Dec 1, 2016
BEST ANSWER: If you are talking about baseboard around the bottom of a wall - no max height is around 3 1/2 " If it is picture frame moulding laying flat - yes you can cut a 45 degree with it laying flat. Hope this helps
How can I order replacement parts. I need the Spring (17 in drawing). Does Rockler handle parts or do I have to deal with a overseas dealer?
Donald C on Nov 23, 2017
BEST ANSWER: Donald I️ have no idea.
Can anyone provide a link to a video that shows the miter trimmer in action? I would love to see it.
Vivian A on Jan 11, 2017
BEST ANSWER: I don't know about a video but the trimmer works beautifully. The secret is to sneak up on the cut and take very thin (very thin) slices. Be very careful handling the unit thise blades are very sharp
What is the maximum board width to miter 45deg.?
john k on Apr 18, 2018
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Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to