M18 Compact Band Saw: Model Identification, Setup, and Common Repairs
You own a Milwaukee M18 compact band saw and you need to identify the model, set it up, or repair it. Milwaukee M18 compact band saws are cordless portable band saws designed for cutting metal in tight spaces. You need to know the models, specifications, and common repairs.
Milwaukee M18 compact band saws are cordless portable band saws powered by M18 REDLITHIUM batteries. They are designed for cutting metal pipe, conduit, unistrut, and bar stock in tight spaces. The compact size makes them lighter and more maneuverable than deep cut models.
Model Identification
Milwaukee M18 Compact Band Saw Models
| Model | Type | Blade Length | Cut Capacity | Notes |
|---|---|---|---|---|
| 2629-20 | M18 FUEL compact (tool only) | 35-3/8 inches | 2-1/2 x 2-1/2 inches | FUEL (brushless) |
| 2829-20 | M18 FUEL compact (newer) | 35-3/8 inches | 2-1/2 x 2-1/2 inches | Newer FUEL |
| 2429-20 | M18 compact (older) | 32-7/8 inches | 2-1/2 x 2-1/2 inches | Brushed motor |
How to Identify Your Model
- Find the model number on the label on the motor housing.
- If the label is missing, check for stamped numbers on the body.
- Check the blade length: 35-3/8 inches = FUEL compact (2629-20, 2829-20). 32-7/8 inches = M18 compact (2429-20).
- Contact Milwaukee customer service with any identifying numbers.
Specifications
M18 FUEL Compact (2629-20, 2829-20)
| Specification | Value |
|---|---|
| Type | M18 FUEL compact band saw (tool only) |
| Battery | M18 REDLITHIUM (not included) |
| Motor | Brushless (POWERSTATE) |
| Blade length | 35-3/8 inches |
| Cut capacity | 2-1/2 x 2-1/2 inches |
| Speed | Variable, 0 to 200 SFPM (verify) |
| Weight | ~10 to 12 pounds (with battery) |
| LED light | Yes |
M18 Compact (2429-20, older)
| Specification | Value |
|---|---|
| Type | M18 compact band saw (tool only) |
| Battery | M18 REDLITHIUM (not included) |
| Motor | Brushed |
| Blade length | 32-7/8 inches |
| Cut capacity | 2-1/2 x 2-1/2 inches |
| Speed | Single speed (verify) |
| Weight | ~10 to 12 pounds (with battery) |
Setup
1. Install the Battery
- Charge the battery fully before first use.
- Insert the battery into the battery slot until it clicks.
- Check that the battery is secure.
2. Install the Blade
- Open the blade guard.
- Release blade tension.
- Install the blade with teeth pointing down (toward the shoe).
- Apply tension.
- Check tracking.
- Close the blade guard.
3. Adjust the Shoe
The shoe can be adjusted for different cut depths. Loosen the shoe locking lever, adjust the shoe position, and tighten the lever.
4. Make the Cut
- Install a charged battery.
- Position the saw on the workpiece.
- Squeeze the trigger.
- Let the saw reach full speed.
- Feed the saw into the material with steady pressure.
- Do not force the cut.
Blade Selection
Blade Length
- M18 FUEL compact (2629-20, 2829-20): 35-3/8 inches.
- M18 compact (2429-20): 32-7/8 inches.
Important: These are different blade lengths. Do not assume they are interchangeable.
Recommended TPI
| 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 |
Cross-Brand Compatibility
- 35-3/8 inch blades: Compatible with some Makita compact models (verify).
- 32-7/8 inch blades: Compatible with DEWALT DCS371, DCS368 (Atomic), and Makita BPB180.
Common Repairs
1. Blade Replacement
When: Cuts become rough or blade breaks. Cost: 15 to 25 dollars.
2. Switch Replacement
When: Switch does not work reliably. Cost: 15 to 25 dollars.
3. Blade Guide Replacement
When: Blade guides are worn and blade wanders. Cost: 20 to 40 dollars.
4. Shoe Adjustment Repair
When: Shoe will not stay in position. Cost: 15 to 25 dollars.
5. Battery Replacement
When: Battery does not hold a charge. Cost: 60 to 150 dollars.
6. Motor Repair
When: Motor does not run or loses power. Brushed motor (2429-20): Replace motor brushes (10 to 20 dollars). Brushless motor (2629-20, 2829-20): Contact Milwaukee service center.
Maintenance
Daily: Clean chips from the blade guard and shoe. Check the blade for wear. Weekly: Clean the blade guide area. Check the battery contacts. Monthly: Check all screws and bolts for tightness. Lubricate the shoe adjustment mechanism. Annually: Check the blade guides. Inspect the switch and battery contacts.
FAQ
What is the difference between the Milwaukee 2629-20 and 2429-20?
The 2629-20 is an M18 FUEL compact with a brushless motor and uses a 35-3/8 inch blade. The 2429-20 is an M18 compact with a brushed motor and uses a 32-7/8 inch blade. The FUEL model is more powerful and efficient.
What blade does the Milwaukee M18 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. Both use 1/2 inch wide, 0.020 inch thick blades.
How long does the battery last on the M18 compact band saw?
With a 2.0Ah battery, expect 15 to 25 cuts per charge on 1/2-inch EMT conduit. With a 5.0Ah battery, expect 40 to 60 cuts per charge.
References
- Milwaukee Tool. “2629-20 Owner’s Manual.” Milwaukee Tool.
- Milwaukee Tool. “2829-20 Owner’s Manual.” Milwaukee Tool.
- Milwaukee Tool. “2429-20 Owner’s Manual.” Milwaukee Tool.
- Pro Tool Reviews. “Milwaukee M18 Compact Band Saw Review.” ProToolReviews.com.
- eReplacementParts. “Milwaukee 2629-20 Parts Diagram.” eReplacementParts.com.
