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3900 Series Impact Wrench

3940, 3942, 3955

3900 Series is designed for the most demanding heavy duty applications. With titanium hammercase, bronze end plates and torque up to 6779 Nm, the 3900 Series are the premier industrial grade impacts in the industry.

Bronze End-Plate:

  • Thanks to the bronze end-plate and a corrosion preventative treatment, this series is corrosion and wear resistant, which makes it great for outdoor conditions.

Durability:

  • With a titanium hammer case and metal housing, this tool can withstand even the harshest conditions.

Power:

  • The 3900 Series delivers a high torque output, making every job a breeze.

Variety:

  • With multiple anvil sizes available, you'll be able to find a tool that is right for your application.
  • Twin hammer mechanism ensure consistent power and balance
  • Reverse bias motor to help remove the most stubborn bolts
  • Pressure-fed mechanism lubrication ensures complete coverage throughout the tool
  • Optimized for general industrial use, MRO, rail, heavy machinery, and shipbuilding
  • Integral muffler
  • 1-year warranty

Model

Configuration

Actuation

Drive Size

Drive Type

Forward Torque (ft-lbs)

Forward Torque (Nm)

Max Reverse Torque (ft-lbs)

Max Reverse Torque (Nm)

Blows per Minute

Free Speed (RPM)

Impacting Sound Level dB(A) — ISO15744 (pressure/power)

Free Speed Sound Level dB(A) — CAGI/ANSI S12.41 (pressure/power)

Vibration Level m/s² (K)

Weight (lbs)

Weight (kg)

Length (in)

Length (mm)

Air Inlet

Min Hose Size (in)

Min Hose Size (mm)

Air Consumption @ Load (cfm)

Air Consumption @ Load (L/min)

Average Air Consumption (cfm)

Average Air Consumption (L/min)

PSI

Bar

3940A1Ti

D-Handle

Outside Trigger

No. 5

Spline, Thru-Hole

1650

2240

2500

3390

800

6000

100.6 / 111.6

103.4 / 114.4

13.1 (1.6)

21.2

9.6

13.5

343

1/2 in.

3/4

19

N/A

N/A

64

1812

90

6.2

3940A2Ti

D-Handle

Outside Trigger

1 in.

Square, Thru-Hole

1650

2240

2500

3390

800

6000

100.6 / 111.6

103.4 / 114.4

13.1 (1.6)

21.2

9.6

13.5

343

1/2 in.

3/4

19

N/A

N/A

64

1812

90

6.2

3940B1Ti

D-Handle

Inside Trigger

No. 5

Spline, Thru-Hole

1650

2240

2500

3390

800

6000

100.6 / 111.6

103.4 / 114.4

13.1 (1.6)

21.2

9.6

13.5

343

1/2 in.

3/4

19

N/A

N/A

64

1812

90

6.2

3940B2Ti

D-Handle

Inside Trigger

1 in.

Square, Thru-Hole

1650

2240

2500

3390

800

6000

100.6 / 111.6

103.4 / 114.4

13.1 (1.6)

21.2

9.6

13.5

343

1/2 in.

3/4

19

N/A

N/A

64

1812

90

6.2

3940P2Ti

Pistol

Trigger

1 in.

Square, Thru-Hole

1650

2240

2500

3390

800

5300

97.8 / 108.8

95.2 / 106.2

14.2 (2)

20.4

9.3

10.1

256

1/2 in.

3/4

19

N/A

N/A

64

1812

90

6.2

3942A1Ti

D-Handle

Outside Trigger

No. 5

Spline, Thru-Hole

1950

2644

3253

4406

850

5000

99.0 / 110.0

102.7 / 113.7

16.9 (4.6)

22.6

10.5

14.3

362

1/2 in.

3/4

19

N/A

N/A

95

2690

90

6.2

3942A2Ti

D-Handle

Outside Trigger

1 in.

Square, Thru-Hole

1950

2644

3251

4406

850

5000

99.0 / 110.0

102.7 / 113.7

16.9 (4.6)

22.6

10.5

14.3

362

1/2 in.

3/4

19

N/A

N/A

95

2690

90

6.2

3942B1Ti

D-Handle

Inside Trigger

No. 5

Spline, Thru-Hole

1950

2644

3252

4406

850

5000

99.0 / 110.0

102.7 / 113.7

16.9 (4.6)

22.6

10.5

14.3

362

1/2 in.

3/4

19

N/A

N/A

95

2690

90

6.2

3942B2Ti

D-Handle

Inside Trigger

1 in.

Square, Thru-Hole

1950

2644

3250

4406

850

5000

99.0 / 110.0

102.7 / 113.7

16.9 (4.6)

22.6

10.5

14.3

362

1/2 in.

3/4

19

N/A

N/A

95

2690

90

6.2

3955A2Ti

D-Handle

Outside Trigger

1-1/2 in.

Square, Thru-Hole

3900

5288

5000

6779

700

2750

101.2 / 112.2

101.5 / 112.5

20.8 (8.5)

34.6

15.7

16.5

419.1

1/2 in.

3/4

19

N/A

N/A

80

2266

90

6.2

3955B1Ti

D-Handle

Inside Trigger

No. 5

Spline, Thru-Hole

3900

5288

5000

6779

700

2750

101.2 / 112.2

101.5 / 112.5

20.8 (8.5)

34.6

15.7

16.5

419.1

1/2 in.

3/4

19

N/A

N/A

80

2266

90

6.2

3955B2Ti

D-Handle

Inside Trigger

1-1/2 in.

Square, Thru-Hole

3900

5288

5000

6779

700

2750

101.2 / 112.2

101.5 / 112.5

20.8 (8.5)

34.6

15.7

16.5

419.1

1/2 in.

3/4

19

N/A

N/A

80

2266

90

6.2

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