Milwaukee Band Saw Blades 44 7/8: TPI, Material, and Cut Compatibility
You own a Milwaukee deep cut band saw and you need to order 44-7/8 inch replacement blades. The 44-7/8 inch blade is the standard length for Milwaukee deep cut portable band saws. You see multiple TPI and material options and you want to know which one to choose. You need a guide that covers 44-7/8 inch blades for Milwaukee saws.
The 44-7/8 inch band saw blade is the standard blade for Milwaukee deep cut portable band saws. It is used by the 2729-20, 2929-20, 6232-20, 2429-20, and other Milwaukee deep cut models. It is also used by DEWALT deep cut saws (DCS374B, DWM120) and Makita cordless saws.
Compatible Milwaukee Saws
| Model | Type | Blade Length |
|---|---|---|
| 2729-20 | M18 FUEL cordless deep cut | 44-7/8 inches |
| 2929-20 | M18 FUEL cordless deep cut (newer) | 44-7/8 inches |
| 6232-20 | Corded deep cut | 44-7/8 inches |
| 2429-20 | M18 cordless deep cut | 44-7/8 inches |
| 6238-20 | Corded deep cut (variable speed) | 44-7/8 inches |
Blade Specifications
| Specification | Value |
|---|---|
| Blade length | 44-7/8 inches |
| Blade width | 1/2 inch |
| Blade thickness | 0.020 inches |
TPI Selection
10 TPI
Best for: Thick pipe, solid bar, structural steel. Material thickness: 1/4 to 2 inches. Characteristics: Cuts aggressively in thick material. Coarse teeth handle deep cuts.
When to use 10 TPI:
- Thick wall pipe (2 inches and up)
- Solid bar stock (1 to 2 inches)
- Structural steel (angle, channel, beam)
- Thick plate
14 TPI
Best for: Medium thickness material, smoother cuts. Material thickness: 1/8 to 1 inch. Characteristics: Good balance of cutting speed and surface finish.
When to use 14 TPI:
- Medium wall pipe (1 to 2 inches)
- Thin solid bar (1/4 to 1 inch)
- Aluminum and soft metals
- When you need a smoother cut than 10 TPI
18 TPI
Best for: General-purpose cutting. Conduit, thin-wall tubing, unistrut. Material thickness: Under 1/4 inch. Characteristics: Fine teeth prevent grabbing and tearing in thin material.
When to use 18 TPI:
- Conduit (1/2 to 1-1/2 inch EMT)
- Thin-wall tubing
- Unistrut (1-5/8 inch)
- Sheet metal (16 gauge and thinner)
10/14 Variable Pitch
Best for: Mixed material thicknesses and production cutting. Characteristics: Alternating coarse and fine teeth. Handles a range of thicknesses without changing blades. Reduces vibration.
Tooth Profile
Standard tooth (0 degree rake): Good balance of cutting speed and surface finish. The most common profile.
Regular tooth (slight negative rake): Smoothest finish. Best for thin material.
Skip tooth (large gullet): Good for soft or gummy materials.
Variable pitch (alternating teeth): Reduces vibration and handles mixed thicknesses.
Blade Material
Bi-Metal M42
The standard for Milwaukee 44-7/8 inch blades. M42 high-speed steel edge hardened to 67 to 69 HRC on flexible spring steel backing. Can cut: Mild steel, stainless steel, aluminum, brass, copper, cast iron. Blade life: 50 to 200 cuts depending on material and thickness. Cost: 15 to 30 dollars.
Bi-Metal M51
Harder edge than M42 (69 to 70 HRC). Better for tough materials like stainless steel. Blade life: 20 to 30 percent longer than M42 in tough materials. Cost: 20 to 40 dollars.
Carbide-Tipped
The longest lasting option. Carbide teeth cut faster and last longer than bi-metal. Blade life: 5 to 10 times longer than M42. Cost: 50 to 100 dollars. Best for: Production cutting where the higher cost is justified by longer life.
Recommended Blades by Task
General-purpose cutting: 10/14 variable pitch, bi-metal M42. Handles a range of material thicknesses. Cost: about 20 dollars.
Thick material: 10 TPI, bi-metal M42. Coarse teeth for thick stock. Cost: about 18 dollars.
Thin material: 18 TPI, bi-metal M42. Fine teeth for thin stock. Cost: about 18 dollars.
Stainless steel: 14 TPI, bi-metal M51. Harder edge for tough material. Cost: about 30 dollars.
Production cutting: Carbide-tipped. Longest life for production use. Cost: about 50 to 100 dollars.
A quality blade for Milwaukee deep cut saws is the Milwaukee 48-39-0502 44-7/8 inch 10 TPI bi-metal blade, which handles a wide range of metal cutting tasks.
For an alternative, the LENOX Wolf-Band 44-7/8 inch 10/14 TPI blade is also a quality option.
Cross-Brand Compatibility
The 44-7/8 inch blade is shared with:
- Milwaukee 2729-20, 2929-20, 6232-20, 2429-20, 6238-20
- DEWALT DCS374B, DCS375B, DCS376B, DWM120, DWM120K
- Makita XBP02TX, GBP01Z
- BLACK+DECKER 9411
Blades from any of these brands will fit any Milwaukee deep cut saw.
Blade Break-In
New bi-metal 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. Skipping break-in can reduce blade life by 30 to 50 percent.
Blade Life Expectations
| Material | TPI | Expected Cuts |
|---|---|---|
| EMT conduit (1/2 inch) | 18 TPI | 80 to 150 |
| Thin-wall tubing (3/4 inch) | 18 TPI | 80 to 150 |
| Medium wall pipe (1-1/2 inch) | 14 TPI | 60 to 120 |
| Thick wall pipe (3 inch) | 10 TPI | 40 to 80 |
| Solid bar (1 inch) | 14 TPI | 50 to 100 |
| Solid bar (2 inch) | 10 TPI | 30 to 60 |
| Stainless steel (1 inch) | 14 TPI | 30 to 60 |
FAQ
What blade does the Milwaukee deep cut band saw use?
A 44-7/8 inch blade in 1/2 inch width and 0.020 inch thickness. Available in 10, 14, and 18 TPI, plus 10/14 variable pitch.
What TPI should I use for cutting conduit?
18 TPI is the best choice for conduit. Fine teeth handle EMT and rigid conduit cleanly without grabbing.
Are Milwaukee 44-7/8 inch blades interchangeable with DEWALT blades?
Yes. Both Milwaukee and DEWALT deep cut saws use the same 44-7/8 inch blade. Blades from either brand will fit the other.
How long does a 44-7/8 inch bi-metal blade last?
50 to 200 cuts depending on material and thickness. Proper break-in, correct speed, and not forcing the cut extend blade life.
What is the best all-purpose blade for a Milwaukee deep cut band saw?
A 10/14 variable pitch bi-metal M42 blade. It handles a range of material thicknesses without changing blades.
References
- Milwaukee Tool. “Portable Band Saw Blade Specifications.” Milwaukee Tool Product Catalog.
- Milwaukee Tool. “44-7/8 Inch Blade Selection Guide.” Milwaukee Tool.
- LENOX Tools. “Wolf-Band 44-7/8 Inch Blade Guide.” LENOX Industrial Division.
- DEWALT. “Portable Band Saw Blade Reference.” DEWALT Product Catalog.
- Pro Tool Reviews. “Milwaukee Band Saw Blade Guide.” ProToolReviews.com.
