Bosch GCM12SD Glide Miter Saw Dust Port Size and Shop Vac Adapter
Bosch 12 in. Dual-Bevel Glide Miter Saw
Specifications
Connect your Bosch GCM12SD to your shop vac
Pick what you are connecting to. Each one is a finished PETG adapter, sized for both ends. Print it yourself or have it shipped, made in the USA.
Standard hose & duct sizes
Popular vacuums & extractors
Not sure which size? Walk through the configurator or measure your port.
Bosch GCM12SD Glide Miter Saw Dust Port Size and Shop Vac Adapter
The Bosch GCM12SD is a 12 in. dual-bevel glide miter saw. It uses the Axial-Glide arm to cut wide boards with a smooth, level stroke. A big miter saw throws a lot of chips and fine dust off the back, so a good dust hookup keeps your shop clean.
The GCM12SD has a 1-3/4 in (44.45 mm) round dust port at the rear. Our PETG adapter plugs into that port and steps it to any standard shop vac or dust extractor hose. No tape. No clamps.
Bosch GCM12SD Dust Port and Specs
| Dust port inner diameter | 44.45mm (1-3/4 in.) |
| Port shape | Round |
| Port location | Rear |
| Connection type | Friction fit |
| Blade size | 12 in. |
Bosch GCM12SD Dust Port Size: 1-3/4 in (44.45 mm) Round Rear Port
The GCM12SD has a 1-3/4 in dust port, which is 44.45 mm across the inside. That is the size an adapter maker lists for this saw. The port sits at the back of the saw where the dust chute exits.
This port is wider than a small track saw port but it still does not match most shop vac hoses. A 2-1/2 inch hose is too big to seal on it and a 1-1/4 inch hose is too small. That gap is why dust leaks when you tape a hose straight to the port.
A GulpDust adapter fits the 44.45 mm port on one end and your vac hose on the other end, so you get a tight seal and full suction at the saw.
How to Connect a Shop Vac to the Bosch GCM12SD
Clear any chips out of the rear port first. A clean port gives the best grip.
Push the small end of the PETG adapter into the 1-3/4 in port. It is a friction fit, so it holds with a firm press. Then press your shop vac or dust extractor hose onto the wide end.
Turn the vac on before you cut. Running the vac while you work pulls the dust right off the back of the saw instead of letting it pile on the bench and hang in the air.
Why Miter Saws Need Good Dust Collection
A miter saw sprays a fan of dust and chips out the back with every cut. The stock bag catches only part of it. The rest lands on the floor and floats in the air.
Pulling the dust at the port keeps your bench and floor clear and keeps fine dust out of your lungs. A clean work area also means fewer chips under your stock, so your cuts sit flat and true.
For the best result, match the adapter to the 44.45 mm port and run a steady vac. Any shop vac with the right adapter does the main job.
Bosch GCM12SD Dust Collection FAQ
What size is the dust port on the Bosch GCM12SD?+
It is a 1-3/4 in port, which is 44.45 mm across the inside. It is a round port at the rear of the saw. Our adapter plugs into that inlet.
Does the Bosch GCM12SD work with a regular shop vac?+
Yes, with an adapter. Most shop vac hoses are 1-7/8 inch or 2-1/2 inch, which does not seal well on the 1-3/4 in port. The GulpDust PETG adapter fits the saw port on one end and your vac hose on the other.
Where is the dust port on the GCM12SD?+
It is at the rear of the saw, where the dust chute exits behind the blade. That is where you plug in the adapter and hose.
Do I need clamps to attach the adapter?+
No. The adapter is a friction fit. You press it into the port and it holds. The vac hose end works the same way.
Can I print this adapter myself?+
Yes. You can buy the printed PETG part shipped from the US, or download the STL file and print it at home. We suggest PETG with 3 walls and 25 percent infill.
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