Designed for precision drilling in high-volume manufacturing environments, the Ingersoll Rand QS381D Inline Air Production Drill delivers 13.3 in-lb maximum torque with a 3,800 RPM free speed to provide reliable drilling performance for repetitive production applications. Its inline configuration aligns the motor directly behind the spindle, giving operators excellent balance and straight-line control for accurate drilling while helping reduce fatigue during extended production shifts.
As part of Ingersoll Rand's Production Drilling & Assembly Tool lineup, the QS381D is engineered for continuous pneumatic operation where consistency, durability, and repeatability are essential. The combination of moderate drilling speed and increased torque makes it well suited for drilling larger holes or working with more demanding materials than higher-speed, lower-torque models. Its lightweight design supports productivity across automotive, aerospace, metal fabrication, and industrial assembly operations.
Type: Inline Air Production Drill | Model: QS381D | Configuration: Inline | Maximum Torque: 13.3 in-lb | Free Speed: 3,800 RPM | Power Source: Pneumatic
Features:
- 3,800 RPM free speed provides efficient drilling for repetitive industrial production applications.
- 13.3 in-lb maximum torque delivers greater drilling capability for controlled production work.
- Inline configuration provides excellent balance and improved straight-line drilling accuracy.
- Pneumatic motor delivers dependable performance for continuous manufacturing environments.
- Lightweight design helps reduce operator fatigue during extended production shifts.
- Designed for repetitive industrial drilling where consistency and precision are critical.
- Suitable for manual workstations and automated manufacturing processes.
- Built for dependable operation in demanding production and assembly environments.

Tech Tip: To increase tool performance, extend tool life and lessen repair costs use it with a Filter-Regulator-Lubricator (FRLs)
Made in USA: ![]()
Applications:
- Production drilling on automotive and transportation assembly lines.
- Aerospace manufacturing requiring accurate and repeatable drilling operations.
- Industrial machinery and equipment assembly.
- Metal fabrication involving precision drilling of production components.
- General manufacturing operations requiring dependable pneumatic drilling performance.
FAQs:
- Q: What are the benefits of an inline production drill?
A: The inline design places the motor directly behind the spindle, providing improved balance and better control for straight, accurate drilling during repetitive production work. - Q: What types of applications is the QS381D intended for?
A: It is designed for repetitive production drilling in manufacturing, aerospace, automotive, fabrication, and industrial assembly environments. - Q: Why does the QS381D operate at 3,800 RPM?
A: The 3,800 RPM free speed provides an effective balance between drilling speed and torque, making it suitable for precision production drilling across a variety of materials. - Q: Is the QS381D intended for heavy-duty drilling?
A: No. With a maximum torque rating of 13.3 in-lb, it is designed for precision production drilling and light-to-medium-duty industrial applications rather than heavy-duty drilling.
| SKU | Max Torque in-lbs (Nm) |
Free Speed rpm |
Weight lbs (kg) |
Length in (mm) |
Bit Holder Capacity in (mm) |
Side to Center in (mm) |
Air Consumption cfm (L/Min) |
|---|---|---|---|---|---|---|---|
| ⟳ LEVER START | |||||||
| QS511D | 10.6 (1.2) | 5,100 | 1.4 (0.6) | 8.1" (205) | 1/4" (6) | 0.6" (15) | 16 (450) |
| QS381D | 13.3 (1.5) | 3,800 | 1.4 (0.6) | 8.1" (205) | 1/4" (6) | 0.6" (15) | 16 (450) |
| QS301D | 16.8 (1.9) | 3,000 | 1.4 (0.6) | 8.1" (205) | 1/4" (6) | 0.6" (15) | 16 (450) |
| QS151D | 33.6 (3.8) | 1,500 | 1.4 (0.6) | 8.1" (205) | 1/4" (6) | 0.6" (15) | 16 (450) |
Looking for more information about the Ingersoll Rand Inline Drill? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Inline Drills for your application, please call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
