For repetitive hole-making in production assembly and metal fabrication, the Ingersoll Rand DG051B-27-B Pneumatic Pistol Grip Drill combines fast drilling speed with a compact, trigger-operated configuration. Part of the 50 Series Air Production Drills, this model delivers 2,700 RPM free speed (rotational speed without drilling resistance) and 49.2 in-lbs (5.5 Nm) of stall torque, providing a balance of speed and turning force for appropriately sized drilling applications. Its 3/8" (10 mm) chuck capacity accommodates compatible drill bit shanks, while the 0.55 HP pneumatic motor supplies the power needed for repeated drilling operations. The pistol grip arrangement makes this model suitable for manufacturing workstations, metalworking shops, and industrial assembly tasks where controlled drill starting and efficient hole production are important.
The Ingersoll Rand DG051B-27-B incorporates a responsive two-stage trigger, allowing operators to begin drilling at reduced speed before increasing rotation as the bit engages the workpiece. Its high-performance motor and 2.3 lb (1.1 kg) weight provide a favorable power-to-weight arrangement for repetitive handheld drilling. Measuring 6.8" (171 mm) in overall length, the tool offers a shorter configuration than the lower-speed DG051B-15-B model, helping operators work around fixtures and assembled components. A 0.9" (22 mm) side-to-center distance, measured from the spindle centerline to the side of the tool, assists with clearance planning near adjacent surfaces. The drill operates with a 1/4" NPT air inlet, 25 CFM (720 L/min) air consumption, and a 5/16" (8 mm) minimum hose internal diameter for appropriately sized compressed-air installations.
Type: Pneumatic Pistol Grip Production Drill | Model: DG051B-27-B | Series: 50 Series | Actuation: Trigger Start | Rated Power: 0.55 HP | Free Speed: 2,700 RPM | Stall Torque: 49.2 in-lbs (5.5 Nm) | Chuck Capacity: 3/8" (10 mm) | Length: 6.8" (171 mm) | Weight: 2.3 lbs (1.1 kg) | Side-to-Center Distance: 0.9" (22 mm) | Sound Level: 78 dB(A) | Air Consumption: 25 CFM (720 L/min) | Air Inlet: 1/4" NPT | Minimum Hose I.D.: 5/16" (8 mm) | Spindle Thread: 3/8"-24
Features:
- 2,700 RPM free speed supports efficient drilling where workpiece material and drill bit diameter permit higher rotational speeds.
- 0.55 HP high-performance pneumatic motor delivers speed and power for smooth hole drilling in production applications.
- 49.2 in-lbs stall torque provides a reference for comparing turning capability with other 50 Series drill configurations.
- 3/8" chuck capacity accommodates compatible drill bit shanks for general production drilling and component assembly.
- Responsive two-stage trigger provides additional control when starting a hole before increasing drilling speed.
- Compact 6.8" overall length helps operators position the drill around workholding fixtures and nearby components.
- Lightweight 2.3 lb construction and contoured pistol grip handle support repeated handheld drilling with less tool weight to manage.
- Excellent power-to-weight ratio combines production drilling capability with a manageable tool configuration.

Tech Tip: To increase tool performance, extend tool life, and lessen repair costs, use it with a Filter-Regulator-Lubricator (FRL)
Made in USA: ![]()
Applications:
- Manufacturing and production assembly – Drilling repeatable holes in mechanical components, brackets, and fabricated assemblies at handheld workstations.
- Sheet metal and metal fabrication – Producing appropriately sized holes in sheet metal and fabricated parts using suitable cutting speeds and drill bits.
- Industrial maintenance and MRO – Preparing mounting holes and drilling replacement components during machinery servicing and repair.
- Tooling and fixture construction – Drilling workholding fixtures, assembly brackets, and tooling components where controlled bit engagement is useful.
- Automotive component manufacturing – Performing repeated drilling operations on accessible production parts and mechanical subassemblies.
FAQs:
- Q: What drilling applications is the Ingersoll Rand DG051B-27-B suited for?
A: The DG051B-27-B is a pistol grip production drill suited to repetitive drilling tasks in manufacturing, metal fabrication, and assembly. Its 2,700 RPM free speed is useful for appropriately sized drill bits and workpiece materials that permit higher cutting speeds. Select the bit diameter and feed conditions according to the material being drilled. - Q: What is the difference between the DG051B-27-B and DG051B-33-B?
A: The DG051B-27-B operates at 2,700 RPM with 49.2 in-lbs of stall torque, while the DG051B-33-B operates at 3,300 RPM with 42.0 in-lbs. Both models have a 3/8" chuck capacity, 0.55 HP rated power, and 6.8" overall length. The DG051B-27-B provides slightly greater stall torque at a lower rotational speed. - Q: How much compressed air does the DG051B-27-B require?
A: Ingersoll Rand specifies air consumption of 25 CFM (720 L/min), a 1/4" NPT air inlet, and a minimum hose internal diameter of 5/16" (8 mm). The compressor and distribution system must provide sufficient airflow at the operating pressure required by the manufacturer. Account for pressure losses in hoses, fittings, and air preparation equipment. - Q: What does the 49.2 in-lbs stall torque rating mean?
A: Stall torque is the torque developed when the drill stops rotating under load. The 49.2 in-lbs (5.5 Nm) rating is useful for comparing the tool's turning capability, but it does not represent continuous drilling torque. Actual drilling performance depends on bit size, workpiece material, cutting speed, and feed pressure. - Q: What chuck size does the DG051B-27-B use?
A: The manufacturer specifies a maximum chuck capacity of 3/8" (10 mm), allowing the drill to hold compatible bit shanks within that size. This specification refers to chuck capacity, not a guaranteed maximum hole diameter in every material. Select drill bits and cutting conditions appropriate to the application.
| SKU | Max. Torque in-lbs (Nm) | Free Speed rpm | Weight lbs (kg) | Length in (mm) | Max. Drill Capacity in (mm) | Side to Center in (mm) | Air Consumption cfm (L/min) |
|---|---|---|---|---|---|---|---|
| Trigger Start | |||||||
| DG051B-180-A | 8.4 (1.0) | 18,000 | 2.3 (1.1) | 6.8" (171) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-180-P | 8.4 (1.0) | 18,000 | 2.3 (1.1) | 6.8" (171) | * | 0.9" (22) | 25 (720) |
| DG051B-52-A | 28.8 (3.3) | 5,200 | 2.3 (1.1) | 6.8" (171) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-52-B | 28.8 (3.3) | 5,200 | 2.3 (1.1) | 6.8" (171) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-52-P | 28.8 (3.3) | 5,200 | 2.3 (1.1) | 6.8" (171) | * | 0.9" (22) | 25 (720) |
| DG051B-33-A | 42.0 (4.7) | 3,300 | 2.3 (1.1) | 6.8" (171) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-33-B | 42.0 (4.7) | 3,300 | 2.3 (1.1) | 6.8" (171) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-33-P | 42.0 (4.7) | 3,300 | 2.3 (1.1) | 6.8" (171) | * | 0.9" (22) | 25 (720) |
| DG051B-27-A | 49.2 (5.5) | 2,700 | 2.3 (1.1) | 6.8" (171) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-27-B | 49.2 (5.5) | 2,700 | 2.3 (1.1) | 6.8" (171) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-27-P | 49.2 (5.5) | 2,700 | 2.3 (1.1) | 6.8" (171) | * | 0.9" (22) | 25 (720) |
| DG051B-15-A | 96 (11) | 1,500 | 2.7 (1.2) | 7.5" (189) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-15-B | 96 (11) | 1,500 | 2.7 (1.2) | 7.5" (189) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-15-P | 96 (11) | 1,500 | 2.7 (1.2) | 7.5" (189) | * | 0.9" (22) | 25 (720) |
| DG051B-11-A | 114 (13) | 1,100 | 2.7 (1.2) | 7.5" (189) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-11-B | 114 (13) | 1,100 | 2.7 (1.2) | 7.5" (189) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-11-P | 114 (13) | 1,100 | 2.7 (1.2) | 7.5" (189) | * | 0.9" (22) | 25 (720) |
| DG051B-6-A | 204 (23) | 600 | 2.7 (1.2) | 7.5" (189) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-6-B | 204 (23) | 600 | 2.7 (1.2) | 7.5" (189) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-6-P | 204 (23) | 600 | 2.7 (1.2) | 7.5" (189) | * | 0.9" (22) | 25 (720) |
| DG051B-4-A | 348 (39) | 400 | 2.7 (1.2) | 7.5" (189) | 1/4" (6) | 0.9" (22) | 25 (720) |
| DG051B-4-B | 348 (39) | 400 | 2.7 (1.2) | 7.5" (189) | 3/8" (10) | 0.9" (22) | 25 (720) |
| DG051B-4-P | 348 (39) | 400 | 2.7 (1.2) | 7.5" (189) | * | 0.9" (22) | 25 (720) |
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
- Type
- Drill
- Actuation
- Trigger Start
- Max Torque (in-lbs)
- 49.2
- RPM
- 2700
- Length (in.)
- 6.8
- Bit Holder Capacity (in.)
- 3/8
- Side to Center (in.)
- 0.9
- Sound Level (dbA)
- 78
- Power (hp)
- 0.55
- Air Consumption (CFM)
- 25
- Air Inlet
- 1/4" NPT
