Designed for controlled, high-torque production drilling, the Ingersoll Rand 8266-A12-2 self-feed offset drill combines a 3/16" drilling capacity, 1,200 RPM free speed, and double gear reduction to deliver smooth, repeatable drilling performance in demanding manufacturing environments. Its integrated self-feed mechanism automatically advances the drill into the workpiece, helping improve hole consistency while reducing operator effort during repetitive production operations.
The offset head configuration provides improved accessibility when drilling near flanges, structural members, and other confined areas where conventional inline drills may not fit. Designed for continuous-duty industrial service, the 8266-A12-2 delivers dependable pneumatic performance for aerospace, transportation equipment, fabrication, and general manufacturing applications requiring accurate, repeatable hole production.
Type: Self-Feed Offset Drill | Drilling Capacity: 3/16 in. | Free Speed: 1,200 RPM | Gear Reduction: Double Gear Reduction
Features:
- Self-feed mechanism automatically advances the drill for consistent hole quality and reduced operator fatigue.
- Offset head design improves access when drilling near flanges, corners, and structural obstructions.
- 1,200 RPM free speed provides controlled drilling for applications requiring increased cutting force and precision.
- Double gear reduction delivers smooth power transmission and dependable drilling performance.
- Designed for repetitive production environments where consistent drilling results are essential.
- Pneumatic operation supports continuous-duty manufacturing and industrial applications.
- Suitable for automated and semi-automated drilling processes requiring repeatable feed control.
Applications:
- Production drilling in aerospace and aircraft manufacturing.
- Industrial fabrication requiring accurate and repeatable hole drilling.
- Transportation equipment and vehicle component manufacturing.
- Assembly operations where automatic feed improves productivity and drilling consistency.
- General manufacturing applications requiring offset-head accessibility and controlled feed rates.
FAQs:
- Q: What is the advantage of a self-feed drill?
A: A self-feed drill automatically advances into the workpiece at a controlled rate, helping produce consistent hole quality while reducing operator fatigue during repetitive drilling operations. - Q: Why is an offset head beneficial?
A: The offset head allows the drill to reach areas near flanges, edges, and structural obstructions where a conventional inline drill may have limited access. - Q: What is the purpose of the double gear reduction?
A: Double gear reduction provides controlled power transmission, supporting smooth drilling performance and reliable operation in demanding production environments. - Q: What industries commonly use the 8266-A12-2?
A: This drill is well suited for aerospace manufacturing, industrial fabrication, transportation equipment production, and other applications requiring precise, repeatable drilling.
NON RETURNABLE. MADE TO ORDER.

| SKU | Free Speed rpm |
Nominal Drilling Capacities | Thrust @ 90psi lbs (N) |
Air Consp.‡ at Working Speed ft³/cycle (L/cycle) |
Sound Level dBa |
Standard Chuck Capacity in (mm) |
Gear Reduction |
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|---|---|---|---|---|---|---|---|---|---|---|
| Stainless Steel Type 304 |
Steel SAE 1213 |
Aluminum 2024-T4 |
Wood Med. or FRP |
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| PAR-A-MATIC SERIES | ||||||||||
| 8266-A23-2 | 2,300 | N/A | 1/16 (1.6) | 1/8 (3.2) | 3/16 (4.8) | Double | ||||
| 8266-A17-2 | 1,700 | N/A | 3/32 (2.4) | 5/32 (4.0) | 7/32 (5.6) | 170 (756) | 2.3 (65) | 74 | 3/8 (9.5) | Double |
| 8266-A12-2 | 1,200 | N/A | 5/32 (4.0) | 3/16 (4.8) | 1/4 (6.4) | Double | ||||
| 8266-A7-2 | 700 | N/A | 3/16 (4.8) | 7/32 (5.6) | 9/32 (7.2) | Double | ||||
Looking for more information about Ingersoll Rand Self-Feed Air Drill? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Self-Feed Air Drills for your application, please call (800) 608-5210 or email info@intlairtool.com
- Type
- Feed Drill
- RPM
- 1200
- Gear Reduction
- Double
- Nominal Drilling Capacities Wood Med. or FRP
- 1/4 (6.4)
- Nominal Drilling Capacities Steel SAE 1213
- 5/32 (4.0)
- Nominal Drilling Capacities Aluminum 2024-T4
- 3/16 (4.8)
- Capacity (in.)
- 3/16
- Power (hp)
- 50
- Air Inlet
- 1/4" NPT Male
- Recommended Hose Size ID (in.)
- 5/16
