Ingersoll Rand 728NA3 Pneumatic Pistol Grip Maintenance Drill | 0.50 HP | 950 RPM | 1/2" Chuck Capacity

For maintenance drilling tasks that demand greater turning force and accommodation of larger drill bit shanks, the Ingersoll Rand 728NA3 Pneumatic Pistol Grip Maintenance Drill offers the lowest-speed, highest-torque configuration among the three models highlighted in the manufacturer's 728 Series lineup. Featuring a 950 RPM free speed (rotational speed without drilling resistance), 120 in-lbs (14 Nm) maximum working torque, and 1/2" (13 mm) chuck capacity, this air-powered drill supports hole-making operations where controlled rotation and increased torque are more important than maximum speed. Its pistol grip arrangement and non-reversible operation make it a practical choice for machinery repair, metal fabrication, equipment assembly, and general industrial maintenance.

Powered by a 0.50 HP pneumatic motor, the 728NA3 combines trigger-start operation with a standard-duty keyed chuck for securing appropriately sized drill bits. Ingersoll Rand specifies a dead handle (an auxiliary handle that provides an additional gripping point) as standard on this model, helping operators maintain control when drilling under higher torque loads. Measuring 8.4" (212 mm) in length and weighing 3.1 lbs (1.4 kg) with the chuck, the drill also provides a 0.9" (23 mm) side-to-center distance for evaluating clearance near adjacent surfaces. Its 19 CFM air consumption and 1/4" NPT air inlet allow maintenance teams to plan the compressed-air supply required for operation. The 728 Series is built for general maintenance work and is described by Ingersoll Rand as capable of withstanding repeated drops and harsh working environments.

Type: Pneumatic Pistol Grip Maintenance Drill | Model: 728NA3 | Series: 728 Series | Operation: Non-Reversible | Actuation: Trigger Start | Chuck Type: Standard-Duty Keyed Chuck | Chuck Capacity: 1/2" (13 mm) | Free Speed: 950 RPM | Maximum Working Torque: 120 in-lbs (14 Nm) | Rated Power: 0.50 HP | Length with Chuck: 8.4" (212 mm) | Weight with Chuck: 3.1 lbs (1.4 kg) | Side to Center: 0.9" (23 mm) | Sound Level: 84 dB(A) | Air Inlet: 1/4" NPT | Air Consumption: 19 CFM (538 L/min) | Minimum Hose Size: 1/4" (6 mm)

Features:

• 950 RPM free speed provides lower-speed rotation for drilling operations where greater torque and appropriate cutting speed are priorities.
• 120 in-lbs maximum working torque delivers the highest torque rating among the 728JA1, 728LA2, and 728NA3 maintenance drill configurations.
• 0.50 HP pneumatic motor supplies power for general-purpose industrial maintenance and drilling applications.
• 1/2" standard-duty keyed chuck accepts compatible drill bit shanks and provides mechanical tightening using a chuck key.
• Dead handle supplied as standard on the 728NA3 provides an additional gripping point for controlling the tool during drilling.
• Trigger-start pistol grip configuration provides convenient tool activation during handheld drilling tasks.
• Non-reversible operation supports applications requiring forward rotation without an additional reversing mechanism.
• 728 Series construction is built to withstand repeated drops and harsh working environments encountered in maintenance operations.

Made in USA: 

Applications:

• Industrial maintenance and MRO – Drilling mounting holes and servicing machinery components where additional turning torque is required.
• Metal fabrication workshops – Drilling appropriately sized holes in steel brackets, fabricated assemblies, and metal components using suitable cutting speeds.
• Heavy equipment and machinery repair – Preparing holes in accessible equipment brackets, replacement components, and mounting assemblies during repair work.
• Manufacturing and equipment assembly – Performing forward-drilling operations on fixtures, machine frames, and mechanical assemblies.
• Automotive and fleet maintenance – Drilling suitable vehicle repair components and mounting hardware where a 1/2" chuck and lower-speed pneumatic drill are appropriate.

FAQs:

• Q: Why choose the Ingersoll Rand 728NA3 instead of the 728LA2 or 728JA1?
  A: The 728NA3 offers 950 RPM, 120 in-lbs of maximum working torque, and a 1/2" chuck. By comparison, the 728LA2 provides 2,100 RPM and 54 in-lbs with a 3/8" chuck, while the 728JA1 provides 3,800 RPM and 30 in-lbs with a 3/8" chuck. Choose the 728NA3 when the application benefits from the larger chuck capacity and increased torque rather than higher rotational speed.
• Q: What compressed-air supply does the 728NA3 require?
  A: Ingersoll Rand specifies 19 CFM (538 L/min) air consumption, a 1/4" NPT air inlet, and a minimum hose size of 1/4" (6 mm). Select a compressor and air supply system capable of maintaining the manufacturer's required operating pressure while delivering sufficient airflow. Account for restrictions and pressure losses in fittings, hoses, and air preparation equipment.
• Q: Does the Ingersoll Rand 728NA3 include a side handle?
  A: The manufacturer's pneumatic industrial drills catalog identifies a dead handle as standard equipment on the 728NA3. This auxiliary handle provides an additional gripping point to help control the drill during higher-torque operations. The exact sales package contents beyond the catalog-listed standard handle should be confirmed if required for purchasing documentation.
• Q: What is the difference between the 728NA3 and 728N8K?
  A: Both models share the 950 RPM free speed, 120 in-lbs maximum working torque, 0.50 HP rated power, and 1/2" chuck capacity. The primary difference is the chuck configuration: the 728NA3 uses a standard-duty keyed chuck, while the 728N8K uses a keyless chuck. Select according to the preferred method of securing and changing drill bits.
• Q: Can the 728NA3 drill 1/2-inch holes in steel?
  A: The 1/2" specification describes the chuck's maximum bit-shank capacity, not a guaranteed drilling diameter in every material. Actual drilling capability depends on material hardness, drill bit geometry, cutting speed, feed force, and available torque. Consult Ingersoll Rand's drilling speed guide and use appropriate bits and cutting conditions for the workpiece.

Looking for more information about the Ingersoll Rand Drill? Click here to view the Catalog

For help choosing the correct Ingersoll Rand Drills for your application, please call (800) 608-5210 or email info@intlairtool.com