Ingersoll Rand 551SMA Large Air Drill from the 551 Series is a heavy-duty pneumatic drilling tool engineered for demanding industrial, fabrication, and maintenance applications that require high torque at low speeds. Powered by a 5.6 max HP motor, it delivers a steady 120 RPM, providing exceptional low-speed torque for large-bore drilling and deep penetration into tough materials such as thick metals, composites, and hardwood. Its rugged air-motor construction and durable design ensure long service life and reliable operation in harsh work environments. The ergonomic build and balanced weight help reduce operator fatigue during extended use, while precision-engineered components deliver consistent, accurate drilling results in production, construction, and assembly settings. Ideal for professional mechanics, industrial tradespeople, and maintenance technicians, the 551SMA combines strength, control, and durability for the most challenging low-speed drilling tasks.
Type: Drill | Free Speed (RPM): 120 | Drilling Capacity (in.): 3 | Spindle: No. 5 Morse Taper | Max Power (hp): 5.6 | Length of Feed (in.): 5 | Height Over Spindle (in.): 21.88 | Side to Center (in.): 2.94 | Air Consumption (CFM): 160 | Air Inlet Size (in.): 1 NPT | Recom. Hose Size (in.): 1
Features:
- Graduated roll throttle
- Ball bearing support for long life and efficient operation
- Heat-treated aluminum housing is high-strength and lightweight
Tech Tip: To increase tool performance, extend tool life, and lessen repair costs, use it with a Filter-Regulator-Lubricator (FRL)
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For help selecting the correct Ingersoll Rand Drills, 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
