Milwaukee Portable Band Saw: Model Identification, Setup, and Common Repairs

You own a Milwaukee portable band saw and you need to identify the model, order blades, or make repairs. The label is worn and you are not sure which model you have. You need a guide that helps you identify your saw, understand its specifications, and perform common repairs.

Milwaukee makes the most popular line of portable band saws on the market. The lineup includes models on both the M12 and M18 battery platforms, plus corded models. Identifying your model is the first step to ordering the right blades and parts.

If you are looking for a new Milwaukee deep cut saw, the Milwaukee 2729-20 M18 FUEL Deep Cut Band Saw is the standard model. The newer Milwaukee 2929-20 has improved features.

Model Identification

M12 FUEL Compact (2529-20)

The smallest Milwaukee band saw. Designed for electricians who cut conduit and thin-wall tubing in tight spaces.

Specification	Value
Cut capacity	1-5/8 inches
Blade length	30-9/16 inches
Blade width	1/2 inch
Motor	Brushless (POWERSTATE)
Speed	550 SFPM
Weight	6.4 pounds
Battery	M12

M18 FUEL Compact (2829-20)

The M18 compact. More capacity than the M12, designed for electricians and plumbers who cut conduit, unistrut, and thin-wall pipe.

Specification	Value
Cut capacity	3-1/4 inches
Blade length	35-3/8 inches
Blade width	1/2 inch
Motor	Brushless (POWERSTATE)
Speed	550 SFPM
Weight	9.9 pounds
Battery	M18

M18 FUEL Deep Cut (2729-20)

The original M18 deep cut. Designed for fabricators and mechanics who cut large pipe, thick bar, and structural steel.

Specification	Value
Cut capacity	5 inches
Blade length	44-7/8 inches
Blade width	1/2 inch
Motor	Brushless (POWERSTATE)
Speed	200 SFPM, single speed
Weight	14.7 pounds
Battery	M18

M18 FUEL Deep Cut (2929-20)

The newer deep cut with improved ergonomics and variable speed.

Specification	Value
Cut capacity	5 inches
Blade length	44-7/8 inches
Blade width	1/2 inch
Motor	Brushless (POWERSTATE)
Speed	200 to 550 SFPM, variable
Weight	14.7 pounds
Battery	M18

Corded Deep Cut (6232-20)

The corded version of the deep cut. Same capacity, no battery needed.

Specification	Value
Cut capacity	4-3/4 inches
Blade length	44-7/8 inches
Motor	6 amp
Speed	Variable, 200 to 350 SFPM
Weight	14.5 pounds

Corded Compact (6230-20)

The corded version of the compact saw.

Specification	Value
Cut capacity	3-1/4 inches
Blade length	35-3/8 inches
Motor	6 amp
Speed	200 to 350 SFPM

How to Identify Your Saw Without the Model Number

By cut capacity: Measure the C-frame opening. 1-5/8 inches means M12 compact (30-9/16 inch blade). 3-1/4 inches means M18 compact (35-3/8 inch blade). 5 inches means M18 deep cut (44-7/8 inch blade).

By battery: If it uses M12 batteries, it is the 2529-20. If it uses M18 batteries, it is either the 2829-20 (compact) or 2729-20/2929-20 (deep cut). If it has a cord, it is the 6230-20 (compact) or 6232-20 (deep cut).

By size and weight: The M12 compact is the smallest and lightest (6.4 pounds). The M18 compact is medium (9.9 pounds). The deep cut is the largest and heaviest (14.7 pounds).

By variable speed: If the saw has a variable speed dial, it is the 2929-20 (newer deep cut). The 2729-20 has single speed.

Blade Selection

Saw Model	Blade Length	Available TPI
2529-20 (M12 compact)	30-9/16 inches	18, 24 TPI
2829-20 (M18 compact)	35-3/8 inches	14, 18, 24 TPI
2729-20, 2929-20 (M18 deep cut)	44-7/8 inches	10, 14, 18 TPI, 10/14 VP
6230-20 (corded compact)	35-3/8 inches	14, 18, 24 TPI
6232-20 (corded deep cut)	44-7/8 inches	10, 14, 18 TPI, 10/14 VP

All Milwaukee portable band saw blades are bi-metal M42 with 1/2 inch width and 0.020 inch thickness.

Initial Setup

Install the blade. Open the blade guard, release tension, install the blade with teeth pointing down, tension the blade, close the guard.

Set the tracking. Run the saw briefly and check that the blade tracks straight. Most Milwaukee saws have fixed tracking that does not need adjustment.

Check the blade guides. The roller bearing guides should be close to the blade but not touching during free running. Adjust if necessary.

Adjust the shoe. The shoe should be square to the blade. If cuts are not square, adjust or replace the shoe.

Common Repairs

Blade Guide Wear

The roller bearing guides can develop play after extended use. Symptoms include blade wandering and poor cut quality.

Repair: Replace the guide bearings. Milwaukee sells replacement guide kits for 30 to 50 dollars. Installation takes about 15 minutes.

Switch Failure

The trigger switch can fail after years of use. Symptoms include intermittent operation or the saw not starting.

Repair: Replace the switch. Cost is 15 to 25 dollars. Takes about 15 minutes. Remove the handle, disconnect the old switch, connect the new switch, reassemble.

Motor Failure

The brushless motor is generally reliable but can fail after heavy use. Symptoms include no power, intermittent operation, or a burning smell.

Repair: The motor assembly is replaceable but expensive (80 to 180 dollars depending on the model). For a used saw that cost 100 dollars, a motor replacement may not be worth it.

Shoe Wear

The shoe can wear from contact with the workpiece. A worn shoe causes angled cuts.

Repair: Replace the shoe. Cost is 20 to 35 dollars. Takes about 10 minutes.

LED Light Failure

The LED work light can fail. Usually this is a wiring issue, not the LED itself.

Repair: Check the wiring connections. If the LED is burned out, replace the LED assembly. Cost is 10 to 20 dollars.

Battery Contact Issues

If the saw does not start or starts intermittently, the battery contacts may be dirty or worn.

Repair: Clean the battery contacts with a wire brush. If the contacts are worn, replace the contact plate. Cost is 10 to 15 dollars.

Parts Availability

Milwaukee band saw parts are widely available from:

Milwaukee Tool Service: The official source for Milwaukee parts. Has diagrams and part numbers for all models.

eReplacementParts: A good source for Milwaukee parts. Has diagrams and part numbers.

Aftermarket suppliers: Blades, guide bearings, switches, and shoes are available from multiple aftermarket suppliers.

FAQ

How do I identify my Milwaukee portable band saw?

Check the model number on the label. If the label is worn, measure the cut capacity: 1-5/8 inches is M12 compact, 3-1/4 inches is M18 compact, 5 inches is M18 deep cut. Or measure the old blade to determine the blade length.

What blade does my Milwaukee portable band saw use?

M12 compact (2529-20): 30-9/16 inches. M18 compact (2829-20): 35-3/8 inches. M18 deep cut (2729-20, 2929-20): 44-7/8 inches. Corded compact (6230-20): 35-3/8 inches. Corded deep cut (6232-20): 44-7/8 inches.

Where can I find parts for my Milwaukee portable band saw?

Milwaukee Tool Service, eReplacementParts, and aftermarket suppliers. Blades and common wear parts (guides, switches, shoes) are widely available.

Is it worth repairing an old Milwaukee band saw?

If the frame is sound and the motor runs, yes. Guide bearings, switches, and shoes are inexpensive and easy to replace. If the motor is bad, the cost of replacement may exceed the value of the saw.

What is the difference between the 2729-20 and 2929-20?

The 2729-20 has single speed (200 SFPM). The 2929-20 has variable speed (200 to 550 SFPM) and improved ergonomics. Both use 44-7/8 inch blades.

Can I use a DEWALT blade in my Milwaukee band saw?

Yes, as long as the blade length matches. DEWALT and Milwaukee blades with the same length are interchangeable.

References

• Milwaukee Tool. “Portable Band Saw Owner’s Manuals.” Models 2529-20, 2829-20, 2729-20, 2929-20, 6230-20, 6232-20.
• Milwaukee Tool. “Service Parts Lists for Portable Band Saws.” Milwaukee Tool Service.
• Milwaukee Tool. “Portable Band Saw Blade Specifications.” Milwaukee Tool Product Catalog.
• eReplacementParts. “Milwaukee Band Saw Parts Reference.” eReplacementParts.com.
• Pro Tool Reviews. “Milwaukee Portable Band Saw Lineup Guide.” ProToolReviews.com.