DEWALT Band Saw 20V: Specifications, Blade Size, and Parts Support

You are considering a DEWALT 20V MAX cordless band saw and you want to know the specifications, what blade to buy, and where to find parts. DEWALT makes two 20V MAX cordless band saws: the DCS374B deep cut and the DCS378B compact. You need to know the differences and which one is right for you.

DEWALT 20V MAX cordless band saws are designed for electricians, plumbers, and fabricators who need to cut pipe, conduit, unistrut, and bar stock on job sites. They run on the DEWALT 20V MAX battery platform.

Model Lineup

DCS374B (20V MAX XR Brushless Deep Cut Band Saw)

The full-size deep cut model.

Specification	Value
Model	DCS374B
Type	20V MAX XR cordless deep cut band saw
Cut capacity	5 inches
Blade length	44-7/8 inches
Blade width	1/2 inch
Blade thickness	0.020 inches
Motor	Brushless
Speed	Single speed, 570 SFPM
Weight	14.1 pounds (bare tool)
Battery	20V MAX
Features	Dual-trigger control, LED light, hang hook

DCS378B (20V MAX XR Brushless Compact Band Saw)

The compact model for tighter spaces.

Specification	Value
Model	DCS378B
Type	20V MAX XR cordless compact band saw
Cut capacity	3-1/4 inches
Blade length	35-3/8 inches
Blade width	1/2 inch
Blade thickness	0.020 inches
Motor	Brushless
Speed	Single speed, 570 SFPM
Weight	10.6 pounds (bare tool)
Battery	20V MAX
Features	Variable speed trigger, LED light

DCS374B vs DCS378B Comparison

Feature	DCS374B	DCS378B
Cut capacity	5 inches	3-1/4 inches
Blade length	44-7/8 inches	35-3/8 inches
Motor	Brushless	Brushless
Speed	570 SFPM	570 SFPM
Weight	14.1 pounds	10.6 pounds
Trigger	Dual-trigger	Variable speed
Best for	Thick pipe, solid bar	Conduit, thin-wall tubing

Which to choose: The DCS374B is the better choice if you cut material over 3-1/4 inches. The DCS378B is better for tight spaces and lighter work.

Blade Selection

DCS374B (44-7/8 Inch Blades)

TPI	Best For	Material Thickness
10 TPI	Thick pipe, solid bar, structural steel	1/4 to 2 inches
14 TPI	Medium thickness, smoother cuts	1/8 to 1 inch
18 TPI	Thin-wall tubing, conduit, sheet metal	Under 1/4 inch
10/14 variable pitch	Mixed material thicknesses	All

DCS378B (35-3/8 Inch Blades)

TPI	Best For	Material Thickness
14 TPI	Medium wall pipe, thin bar, aluminum	1/4 to 1 inch
18 TPI	Conduit, thin-wall tubing, general purpose	1/8 to 3/4 inch
24 TPI	Sheet metal, small round stock	Under 1/4 inch

Blade Material

Bi-metal M42: The standard. Handles mild steel, stainless steel, aluminum, brass, copper, and cast iron. Cost: 15 to 30 dollars.

Bi-metal M51: Harder edge for tough materials like stainless steel. Cost: 20 to 40 dollars.

Cross-Brand Compatibility

44-7/8 inch: Fits Milwaukee 2729-20, 2929-20, 6232-20, Makita XBP02TX, BLACK+DECKER 9411. 35-3/8 inch: Fits Milwaukee 2829-20, 2629-20, 6230-20.

Controls

Dual-Trigger Control (DCS374B)

The DCS374B has a dual-trigger system. Both triggers must be pressed to start the saw. This is a safety feature that prevents accidental starting.

Variable Speed Trigger (DCS378B)

The DCS378B has a variable speed trigger. The blade speed varies with trigger pressure. Press lightly for slow speed, press fully for full speed.

LED Work Light

Both models have an LED work light that illuminates the cut line. The light turns on when the trigger is pressed.

Hang Hook

The DCS374B has a hang hook for storing the saw on scaffolding or rafters between cuts.

Parts Support

DEWALT Factory Service

DEWALT operates factory service centers. Contact them with the model number for OEM parts and repairs.

eReplacementParts

eReplacementParts carries DEWALT parts. Search by model number for parts diagrams.

Common Replacement Parts

Blades: Available from DEWALT, Milwaukee, LENOX, MK Morse, Starrett, and other manufacturers. Blade guides: Model-specific. Order from DEWALT or eReplacementParts. Switches: Model-specific. Order from DEWALT or eReplacementParts. Bearings: Model-specific. Read the bearing number for the correct replacement. Batteries: Genuine DEWALT 20V MAX batteries from DEWALT, Home Depot, and online retailers.

DEWALT vs Milwaukee vs Makita (20V Comparison)

Feature	DEWALT DCS374B	Milwaukee 2929-20	Makita XBP02TX
Cut capacity	5 inches	5 inches	5 inches
Blade length	44-7/8 inches	44-7/8 inches	44-7/8 inches
Motor	Brushless	Brushless	Brushless
Speed	570 SFPM (single)	200-550 SFPM (variable)	275-530 FPM (variable)
Weight	14.1 pounds	14.7 pounds	14.3 pounds
Battery	20V MAX	M18	18V LXT
Trigger	Dual-trigger	Single	Single

Which to choose: All three are capable saws. The Milwaukee 2929-20 has variable speed, which is an advantage. The DEWALT has the dual-trigger safety feature. The Makita has variable speed with a dial.

FAQ

What blade does the DEWALT DCS374B 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 blade does the DEWALT DCS378B use?

A 35-3/8 inch blade in 1/2 inch width. Available in 14, 18, and 24 TPI.

Can I use a Milwaukee blade in my DEWALT 20V band saw?

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

What is the cut capacity of the DEWALT DCS374B?

5 inches. This is the same as the Milwaukee deep cut and the Makita full-size portable saw.

Does the DEWALT 20V band saw have variable speed?

The DCS378B has a variable speed trigger. The DCS374B has single speed (570 SFPM) with a dual-trigger control.

Where can I find parts for my DEWALT 20V band saw?

DEWALT Factory Service, eReplacementParts, and online retailers. For blades, aftermarket suppliers like LENOX and MK Morse also make compatible blades.

References

• DEWALT. “DCS374B 20V MAX XR Deep Cut Band Saw Owner’s Manual.” DEWALT Industrial Tool Company.
• DEWALT. “DCS378B 20V MAX XR Compact Band Saw Owner’s Manual.” DEWALT Industrial Tool Company.
• DEWALT. “20V MAX Battery System Guide.” DEWALT Industrial Tool Company.
• LENOX Tools. “Wolf-Band Portable Band Saw Blade Guide.” LENOX Industrial Division.
• Pro Tool Reviews. “DEWALT vs Milwaukee vs Makita Band Saw Comparison.” ProToolReviews.com.