Built for high-torque drilling in heavy manufacturing, fabrication, and industrial maintenance, the Ingersoll Rand 7AQST8 Pistol Grip Air Drill combines a durable 0.75 HP pneumatic motor with an impressive 269.9 in-lbs maximum torque to handle demanding drilling applications requiring exceptional power and control. Its 300 RPM free speed provides the slow rotational speed needed for large-diameter drill bits and difficult materials, helping improve hole quality while minimizing bit walking and overheating. The trigger-start pistol grip design delivers responsive throttle control and balanced handling, making the tool well suited for continuous production environments.
As a member of Ingersoll Rand's proven 7 Series industrial drills, the 7AQST8 is engineered for dependable performance in rigorous drilling operations. The non-reversible configuration is optimized for dedicated forward drilling, while the cantilever-mounted planetary gear system efficiently transfers motor power and simplifies routine maintenance. Its lightweight construction and compact profile allow operators to maintain excellent control, even during extended drilling applications requiring sustained torque output.
Type: Pistol Grip Air Drill | Series: 7 Series | Model: 7AQST8 | Power: 0.75 HP | Maximum Torque: 269.9 in-lbs | Free Speed: 300 RPM | Chuck Capacity: 1/2 in. (13 mm) | Start Type: Trigger Start | Reverse: No | Length: 7.4 in. (189 mm) | Weight: 2.2 lb (1.0 kg) | Side-to-Center: 0.9 in. (22 mm) | Air Consumption: 25 CFM | Air Inlet: 1/4 in. NPT | Minimum Hose Size: 5/16 in. | Sound Level: 82 dBA
Features:
- 0.75 HP pneumatic motor provides dependable performance for continuous industrial drilling operations.
- 269.9 in-lbs maximum torque delivers substantial drilling power for large-diameter holes and demanding materials.
- 300 RPM free speed provides excellent low-speed control for precision drilling and improved hole quality.
- Trigger-start throttle enables smooth, responsive speed control throughout drilling operations.
- Compact pistol grip configuration promotes balanced handling and precise operator control.
- Cantilever-mounted planetary gears provide efficient power transmission while simplifying routine maintenance.
- Skinsulate™ housing improves grip and enhances comfort during extended production use.
- Lightweight construction helps reduce operator fatigue during repetitive industrial drilling applications.
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:
- Heavy manufacturing operations requiring maximum torque for large-hole drilling.
- Metal fabrication shops drilling structural steel, plate, and fabricated assemblies.
- Industrial maintenance departments servicing heavy machinery, production equipment, and structural components.
- Equipment assembly operations where controlled low-speed drilling improves precision and finish quality.
- General industrial workshops performing repetitive drilling in thick metals and other demanding materials.
FAQs:
- Q: Why does the 7AQST8 operate at only 300 RPM?
A: The lower free speed allows the drill to generate significantly higher torque, making it suitable for large drill bits and demanding drilling applications where control is more important than drilling speed. - Q: Is the 7AQST8 reversible?
A: No. The 7AQST8 is a non-reversible model designed specifically for dedicated forward drilling operations. - Q: What chuck capacity does this drill feature?
A: The 7AQST8 is equipped with a 1/2-inch (13 mm) chuck for compatibility with larger industrial drill bits used in high-torque applications. - Q: What compressed air supply is recommended?
A: The drill consumes approximately 25 CFM and features a 1/4-inch NPT air inlet. A minimum 5/16-inch air hose is recommended to maintain consistent airflow and dependable drilling performance.
| SKU | MAX. TORQUE | FREE SPEED | WEIGHT | LENGTH | MAX. DRILL DIA. | SIDE TO CENTER | AIR CONSUMPTION |
|---|---|---|---|---|---|---|---|
| in-lbs (Nm) | rpm | lbs (kg) | in (mm) | in (mm) | in (mm) | cfm (L/min) | |
| TRIGGER START | |||||||
| 7ADST4 | 10 (1.1) | 20,000 | 2.2 (1.0) | 7.4" (189) | 1/4" (6) | 0.9" (22) | 25 (700) |
| 7AHST4 | 33 (3.7) | 6,000 | 2.3 (1.1) | 7.4" (189) | 1/4" (6) | 0.9" (22) | 25 (700) |
| 7AJST4 | 40 (4.5) | 4,800 | 2.3 (1.1) | 7.4" (189) | 1/4" (6) | 0.9" (22) | 25 (700) |
| 7AJJST4 | 47 (5.5) | 4,000 | 2.3 (1.1) | 7.4" (189) | 1/4" (6) | 0.9" (22) | 25 (700) |
| 7AKST6 | 58 (6.6) | 3,200 | 2.4 (1.1) | 7.6" (194) | 3/8" (10) | 0.9" (22) | 25 (700) |
| 7ALST6 | 78 (8.8) | 2,400 | 2.7 (1.2) | 7.8" (198) | 3/8" (10) | 0.9" (22) | 25 (700) |
| 7AMST6 | 130.1 (14.7) | 1,400 | 2.9 (1.3) | 8.5" (216) | 3/8" (10) | 0.9" (22) | 25 (700) |
| 7ANST8 | 185.0 (20.9) | 900 | 3.2 (1.5) | 8.7" (222) | 1/2" (13) | 0.9" (22) | 25 (700) |
| 7AQST8 | 269.9 (30.5) | 600 | 3.2 (1.5) | 8.7" (222) | 1/2" (13) | 0.9" (22) | 25 (700) |
Looking for more information about the Ingersoll Rand Drill? Click here to view the Catalog
For help choosing the proper Ingersoll Rand Drills for your assembly application, please email info@intlairtool.com or call (800) 608-5210
- Type
- Drill
- Power (hp)
- 0.75
- Actuation
- Trigger Start
- Torque Range (in-lbs)
- 269.9
- RPM
- 600
- Length (in.)
- 8.7
- Bit Holder Capacity (in.)
- 1/2
- Side to Center (in.)
- 0.9
- Sound Level (dbA)
- 82
- Air Inlet
- 1/4" NPT
- Air Consumption (CFM)
- 25
- Min Hose Size (in.)
- 5/16
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