Milwaukee Compact Band Saw Blade: Dimensions, Uses, and Selection Rules
You own a Milwaukee compact band saw and you need to buy blades. Milwaukee compact band saws use different blade lengths depending on the model. You need to know the correct blade length, TPI, and material for your compact saw.
Milwaukee compact band saws are smaller and lighter than deep cut models. They are designed for cutting smaller material in tight spaces. Milwaukee offers M18 compact, M18 FUEL compact, and M12 FUEL sub-compact models, each requiring a specific blade length.
Blade Lengths by Model
M18 FUEL Compact (35-3/8 Inch Blade)
| Model | Type | Blade Length | Cut Capacity |
|---|---|---|---|
| 2629-20 | M18 FUEL compact (tool only) | 35-3/8 inches | 2-1/2 x 2-1/2 inches |
| 2829-20 | M18 FUEL compact (newer) | 35-3/8 inches | 2-1/2 x 2-1/2 inches |
M18 Compact (32-7/8 Inch Blade)
| Model | Type | Blade Length | Cut Capacity |
|---|---|---|---|
| 2429-20 | M18 compact (older) | 32-7/8 inches | 2-1/2 x 2-1/2 inches |
M12 FUEL Sub-Compact (30-9/16 Inch Blade)
| Model | Type | Blade Length | Cut Capacity |
|---|---|---|---|
| 2529-20 | M12 FUEL sub-compact | 30-9/16 inches | 1-3/4 x 1-3/4 inches |
How to Verify Your Blade Length
- Check the saw manual.
- Measure the old blade circumference.
- Look for the blade length printed on the saw or blade package.
Blade Dimensions
Standard Dimensions
Width: 1/2 inch (all Milwaukee compact saws). Thickness: 0.020 inches.
Important Note
The 35-3/8 inch blade (2629-20, 2829-20) and the 32-7/8 inch blade (2429-20) are different lengths. Do not assume they are interchangeable. Always verify the blade length for your specific model.
TPI Selection
By Material and Thickness
| TPI | Best For | Material Thickness |
|---|---|---|
| 10 TPI | Thick pipe, solid bar | 1/4 to 2 inches |
| 14 TPI | Medium thickness | 1/8 to 1 inch |
| 18 TPI | Thin material, conduit | Under 1/4 inch |
| 10/14 variable pitch | Mixed thicknesses | All |
| 24 TPI | Very thin sheet metal | Under 1/8 inch |
Recommended TPI by Application
EMT conduit (1/2 to 1 inch): 18 TPI. Thin-wall tubing (1/2 to 3/4 inch): 18 TPI. Medium wall pipe (1/2 to 1-1/2 inches): 14 TPI. Thick wall pipe (1 to 2 inches): 10 TPI. Solid bar (1/4 to 1 inch): 14 TPI. Unistrut (1-5/8 inch): 18 TPI. Sheet metal (16 gauge and thinner): 24 TPI.
Compact vs Deep Cut TPI
Compact saws have a smaller cut capacity (2-1/2 x 2-1/2 inches) than deep cut saws (5 x 5 inches). For compact saws, 14 to 18 TPI is most commonly used because the material is typically thinner.
Blade Material
Bi-Metal M42
The standard for Milwaukee compact band saw blades.
Hardness: 67 to 69 HRC. Best for: Mild steel, stainless steel, aluminum, copper. Cost: 15 to 25 dollars.
Bi-Metal M51
Harder edge for tough materials.
Hardness: 69 to 70 HRC. Best for: Stainless steel, tool steel, hard alloys. Cost: 20 to 30 dollars.
Carbide-Tipped
For production cutting.
Best for: High-volume cutting, abrasive materials. Cost: 35 to 60 dollars.
Tooth Profiles
Standard Tooth (0 Degree Rake)
Good balance of cutting speed and surface finish. The most common profile.
Hook Tooth (Positive Rake)
Cuts aggressively. Best for thick stock and solid bar.
Variable Pitch (Alternating Teeth)
Reduces vibration and handles mixed thicknesses. Produces smoother cuts and less noise.
Blade Life Expectations
| Material | TPI | Expected Cuts |
|---|---|---|
| EMT conduit (1/2 inch) | 18 TPI | 100 to 200 |
| Thin-wall tubing (3/4 inch) | 18 TPI | 100 to 200 |
| Medium wall pipe (1 inch) | 14 TPI | 70 to 150 |
| Solid bar (1/2 inch) | 14 TPI | 60 to 120 |
| Unistrut (1-5/8 inch) | 18 TPI | 80 to 150 |
| Stainless steel (1/2 inch) | 14 TPI | 50 to 100 |
Blade Break-In
New blades need a break-in period. Run the first 10 to 20 cuts at half feed pressure. This lets the tooth tips wear evenly and prevents chipping.
Where to Buy Milwaukee Compact Band Saw Blades
Milwaukee Tool: OEM blades in all lengths and TPI. LENOX: Wolf Band and standard bi-metal blades. Starrett: Bi-metal blades in all lengths. Olson Saw: Budget bi-metal blades. Amazon: Various brands and specifications.
FAQ
What blade does my Milwaukee compact band saw use?
M18 FUEL compact (2629-20, 2829-20) uses 35-3/8 inch blades. M18 compact (2429-20) uses 32-7/8 inch blades. M12 FUEL sub-compact (2529-20) uses 30-9/16 inch blades.
What TPI should I use for my Milwaukee compact band saw?
14 to 18 TPI for most applications, since compact saws are typically used on thinner material. 10 TPI for thick material up to 2 inches. 10/14 variable pitch for mixed thicknesses.
Are compact band saw blades interchangeable with deep cut blades?
No. Compact and deep cut saws use different blade lengths. The 35-3/8 inch compact blade will not fit a 44-7/8 inch deep cut saw, and vice versa.
References
- Milwaukee Tool. “Compact Band Saw Blade Guide.” Milwaukee Tool.
- LENOX Tools. “Portable Band Saw Blade Specifications.” LENOX Industrial Division.
- Starrett. “Bi-Metal Blade Guide.” L.S. Starrett Company.
- Pro Tool Reviews. “Milwaukee Compact Band Saw Review.” ProToolReviews.com.
