Bosch GCM12SD 12" Glide Mitersaw

WOOD magazine rating
Average reader rating
4.4
out of 5
Brand:
Bosch
Model:
GCM12SD
Price:
$775

Description

• Axial-Glide System: durable, consistent precision over tool life. Compact Workspace: saves up-to 12” workspace. Glide Action: unmatched smoothness of cut.
• Expanded Cutting Capacity: 14” horizontal capacity (nominal); 6-1/2" vertical capacity against the fence (base); 6-1/2" crown capacity against the fence (45° spring angle)
• Upfront Bevel Controls: All-metal bevel lock lever and range selector located upfront for quick and easy bevel settings without reaching behind the saw.
• Squarelock Quick-Release Fences: fence aligns 90° to table and requires no adjustment; One-touch lock/unlock to slide fence for added support.
• Integrated Expanding Base Extensions: 60% more left-to-right material support than leading competitor; 40 inches left to right
• Large Easy-to-read uniform bevel & stainless steel miter scales: 52° Left/60° Right Miter Capacity; 47° Left/47° Right Bevel Capacity with marked detents and roof pitch angles.
• Adjustable miter detents at 0°, 15°, 31.6°, 22.5°, 45°, 60° (right only)
• Push-button miter detent override - Easy-to-access thumb actuated control right up front for fine miter angle adjustment.
• Bevel Detents: 0, 33.9°, 45° Left/Right.
• Ergonomic Ambidextrous Trigger Handle with Soft Grip: Large form-fitting ergonomic handle provides comfort for all-day use.

• Blade Diameter 12"
• Amperage: 15
• No Load RPM: 3,800
• Bevel Angle Range: 48° left/48° right
• Miter Angle Range: 52° Left/60° Right
• Weight: 65 lbs

Includes:
(1) 12” 60T Blade
(1) Material Clamp
(1) Dust Bag

WOOD magazine review

A slider than glides without rails

Review Summary

Sliding mitersaws offer greater crosscut capacity, but those wide cuts come at the cost of benchtop real estate. Bosch’s 12" Glide Mitersaw solves that problem and more. Most notably, a rock-solid articulated arm replaces the traditional rails—which stick out a foot or so behind typical sliders—letting the saw fold up tightly behind the fence, saving 5" to 8" of rear footprint.
And because the arm articulates so smoothly and solidly, the saw doesn’t deflect as much as some sliders can, creating more accurate cuts. Bosch achieved all this without sacrificing capacity: The saw crosscuts 14"-wide boards lying flat and 6-1⁄2" stock standing on edge. With 10 miter and 5 bevel detents, this saw sets up quickly and accurately for the most common cuts, and it’s easy to adjust should those detents get knocked out of kilter. We cut lots of hardwood, treated pine, and moldings with this saw, and it never bogged down. The belt-driven motor causes a little “kick” at startup and shutdown, but it wasn't bothersome. Our only knock: It weighs a whopping 65 lbs! So it’s not easily carried alone, especially up or down stairs or when lifting into a pickup bed.

Detailed Ratings

4.8
out of 5

Performance

5

Features

5

Ease of Use

5

Value

4

Reader Reviews

Super Saw

Review Summary

This is a great innovation in miter saws. Its smooth operation is unprecedented, as is its repeatability. It delivers accuracy comparable to my Powermatic 66 with an Incra Miter System. Bosch thought of everything and incorporated in this product. OK, now for the minuses. It took me 2 hours to get the saw initially calibrated. Out of the box, it was off at least 2 degrees. A saw of this price should be closer when packed from the factory.
The dealer verified that he had heard this from other customers. Next, Bosch should not put their name on a saw blade. The blade that came with the saw is something that I would expect on a saw costing 1/4 as much. I immediately put a Forrest Chopmaster Signature blade on the saw. The cuts are now as smooth as glass. I would definitely buy this saw again, even with the minor shortcomings.

Detailed Ratings

4.8
out of 5

Performance

5

Features

5

Ease of Use

5

Value

4

Very nice saw

Review Summary

Very smooth action with the gliding mechanism, easy setting for mitres. Mine seemed to be calibrated right-on out of the box. I find it very heavy to move when returning from a bevel position with the motor mounted up high like it is. For the price, I was surprised there was no laser sight included and you have to pay extra for the stops for repeat cutting. The blade supplied is just terrible, even with plywood backing on the fence, the cuts aren't great. Otherwise, a pleasure to use.

Detailed Ratings

4.3
out of 5

Performance

5

Features

4

Ease of Use

4

Value

4

All Right With This Saw!

Review Summary

Well, I will have to agree about the blade, you would think that a piece of equipment as "Game Changing" sorry for the cliche, as this piece is, for a few more dollars you would have a world class, all around saw that would be real difficult to knock.
But the Accounting Department crunched the numbers like always and told "R & D Department" to chuck on this chunk of metal to save a few cents which quickly mucked up a masterpiece!! That being said, right out of the box after meticulously checking absolutely everything twice, front to back and top to bottom, I found nothing to be off. Did you read what I just said, nothing off..everything was dead on from the factory, which we all know is damn impressive. So, I will not deduct any points due to the accounting department or whoever may have been responsible for the poor decision of giving the nod and opting for the sub-par selection of saw blades. After using the saw for over one year now I have no regrets in the purchase and everything still works today as well as the day that it was purchased. I know there were some lower marks in the Value Section, I still rated mine a 5 star , the reason being that if you shop around like I did, I got a great deal and it wasn't difficult it took at most, about 15 minutes. I purchased my saw at the same price that every other company was selling it for, but I found a deal, this particular company was willing to also throw in a brand new Bosch GTA3800 Miter Saw Stand with the purchase. So I find the value to be very reasonable. My Ratings, All Around 5 STARS!!!

Detailed Ratings

5.0
out of 5

Performance

5

Features

5

Ease of Use

5

Value

5

One of the first to own this beautiful machine!

Review Summary

I bought mine in October, 2010 from "Performance Line Tool Center". (It is now August, 2013.) That was the first source I could find that offered them for sale. I had been reading about this inovative design for several months, and my mouth was salivating. I loved this design. No rods and bearings to cause vibration, no need to giveup space behind the saw to allow the rods to travel back-and-forth.
Combined with the built-in extensions of the saw and the extensions of the optional "Gravity Table" I could handle extra long stock. I had been looking for the right miter saw for many years with no luck. I had been buying, trying, and selling miter saws over-and-over. I was sick of it. Until then, all other sliding-compound-miter-saws had 2 steel rods that were suspended over the saw's cutting path. You ask, "What's wrong with that?" They always had a vibration caused by the ball bearing rollers as they rolled over the dust on the rods - every one of them! That vibration has to transfer to the saw blade and the quality of the finished cut. Not so with this Bosch gliding design. Then I read an article describing the coming of this Bosch Glider. It didn't have any rods and bearings to rumble and vibrate and spoil the cut finish. Instead, and this is important to notice and think about, it was designed with "knuckles" (or hinges), not 2 steel rods. I have used other kinds of tools that use knuckles to keep the parts in line and operating perfectly straight and smooth. So I was familiar with the design concept, and liked it. I put my order in as a pre-order. So, I was willing to take a chance on my gut feeling. The saw was "almost perfect". Pros: It was very solid and sturdy. This is also a "con", because it was so heavy, and I am getting older and weaker. This would not be a problem for a young man with lots of muscle. It operated as smoothly as I had hoped. There was absolutely no vibration as I had experienced with rods. The knuckles never imposed behind the saw at all, so I could push it right up against a wall. All controls are up front and easy to use. Good, solid stop detents that leave no doubt that you have found the exact angle you are searching for. Cons: It's very heavy. You must judge this one for your needs. For me, it sits in my shop; I never intend to take it to a job site. Like most tools, calibration is ticklish, and takes time. All types of machines seem to have this fault. I would sure be angry if my new car needed this much user service. But like I said, this is common to all machinery; they never come perfect from the factory. Even chisels require the owner to sharpen them before using them the first time. I had one problem. The saw has an electronic braking system. At firt it worked fine. By that I mean that I would turn on the saw motor, bring it to full speed, then release the trigger. Normally it stopped quickly...until one time it didn't. The blade just costed to a stop, taking a long time. I called the factory, but they had no clue for what could cause this. They said to take it to a service center! No chance I was going to build a crate and haul it up the stairs from my shop and lift it onto my truck. So I studied it to try to figure out what could cause the brake to fail. I found it! It was simply a LOOSE ARBORE NUT! I tightened it, and all has been well since. The factory blade is not meant to make the machine cut well. I would say it is there to teach you how to change blades. In other words, buy a Forrest Woodworker or other quality blade to replace it. I was surprised at the low price offered by "Performance Line Tool Center". I jumped on it! (I cannot speak to what they sell for today.) The dust collection sucks; no, it really doesn't exist. I replaced it with a tent that catches the dust and lets it drop to the bottom. (See "Chopshop Saw Hood" from "www.fastcap.com".) I would recommend it to everyone. That's all the cons. Once you get by them, you are set

Detailed Ratings

4.3
out of 5

Performance

5

Features

5

Ease of Use

4

Value

3

Best of Miter Saw out there

Review Summary

I can't imagine a miter saw being better than this one. We parked it on our miter bench, immediately replaced the blade and have used it continuously for the past 2 years. Set-up was dead on right out of the box and I plan to keep it that way by not making it a portable. I added the Bosch laser to it and found it to be a waste of good money. Better to use the blade teeth to locate the cut. Dust collection is as good as any other.
My only complaint is the safety thumb button on the trigger handle. It is a little stiff for my taste. All in all, it was worth the $700 and change.

Detailed Ratings

5.0
out of 5

Performance

5

Features

5

Ease of Use

5

Value

5

Excellent short depth, not inspiring otherwise.

Review Summary

I got the GCM12SD to replace a Makita LS1013. Purpose was to gain aisle space where the saw is permanently bench mounted. The Bosch is gratifyingly more compact in the fore and aft dimension. The Makita was handier overall when in use. The Bosch has only a single hold-down post position on each side of the blade. The more refined-sounding Makita had two on each side and the post holders close to the blade made holding down small wood pieces for cutting much easier and safer.
The rather crude hold-down clamp on the Bosch is slow to adjust (turn, turn, turn the knob) when alternating between thick and thin workpieces. I have replaced the hold-down clamps with better clamps from other brands of compound miter saws. The super-stiff switch and safety button springs have also been replaced with lighter-to-push replacements. I have yet to find a solution to the poor dust collection despite a dedicated shop vac and customized hose hookup. The main culprit appears to be a too-small dust gathering rubber apron and a convoluted, too small dust, collection plastic ducting fitting on the saw.

Detailed Ratings

3.3
out of 5

Performance

4

Features

3

Ease of Use

3

Value

3

Great saw

Review Summary

I went with the 10 inch version downsized from my 12" Dewalt. Overall great saw except for the depth stop doesn't seem too reliable. Blade seems to dig in on the cut.

Detailed Ratings

4.3
out of 5

Performance

4

Features

5

Ease of Use

4

Value

4

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