Designed for precision production drilling, the Ingersoll Rand 8248-B30-1 self-feed twin drill combines a 1/8" drilling capacity, 0.25 HP pneumatic motor, 2,700 RPM free speed, and single gear reduction to deliver controlled, 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 twin drill configuration is designed for simultaneous drilling operations, helping improve productivity and maintain consistent hole spacing where multiple holes are required. Built for continuous-duty industrial service, the 8248-B30-1 delivers dependable pneumatic performance for aerospace, transportation equipment, fabrication, and general manufacturing applications where accuracy, repeatability, and efficient production cycles are essential.
Type: Self-Feed Twin Drill | Drilling Capacity: 1/8 in. | Power: 0.25 HP | Free Speed: 2,700 RPM | Gear Reduction: Single Gear Reduction
Features:
- Self-feed mechanism automatically advances the drill for consistent hole quality and reduced operator fatigue.
- Twin drill configuration supports simultaneous drilling operations to improve production efficiency.
- 0.25 HP pneumatic motor delivers reliable performance for continuous-duty industrial applications.
- 2,700 RPM free speed provides a balanced combination of drilling speed and control for production work.
- Single gear reduction delivers efficient power transmission for dependable drilling performance.
- Designed for repetitive manufacturing operations requiring accurate and repeatable hole production.
- Pneumatic operation supports automated and semi-automated drilling processes with consistent performance.
Applications:
- Production drilling in aerospace and aircraft manufacturing.
- Simultaneous hole drilling for fabricated and assembled components.
- Transportation equipment and vehicle component manufacturing.
- Industrial fabrication requiring repeatable production drilling.
- General manufacturing applications where consistent multi-hole drilling improves efficiency and product quality.
FAQs:
- Q: What is the benefit of a self-feed drill?
A: A self-feed drill automatically advances into the workpiece at a controlled rate, helping improve hole consistency while reducing operator fatigue during repetitive production drilling. - Q: Why use a twin drill configuration?
A: The twin drill configuration is designed to support simultaneous drilling operations, helping improve productivity and maintain consistent hole alignment in production environments. - Q: Why does this drill operate at 2,700 RPM?
A: The 2,700 RPM free speed provides a balanced combination of drilling speed and control, making it suitable for precision production drilling applications. - Q: What is the purpose of the single gear reduction?
A: The single gear reduction provides efficient power transmission for reliable drilling performance while maintaining consistent operating speed.
NON RETURNABLE. MADE TO ORDER.
| SKU | Stroke Lengths in (mm) |
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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| BANT-A-MATIC SERIES | |||||||||||
| 8248-B45-1 | 1-1/4" (32) | 4,400 | 1/32 (.78) | 1/16 (1.6) | 3/32 (2.4) | 3/32 (2.4) | Single | ||||
| 8248-B30-1 | 1-1/4" (32) | 2,700 | 1/16 (1.6) | 3/32 (2.4) | 1/8 (3.2) | 1/8 (3.2) | 90 (400) | 1.5 (42) | 77 | 5/32(4.0) | Single |
| 8248-B8-1 | 1-1/4" (32) | 900 | 1/8 (3.2) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Double | ||||
| 8248-B45-2 | 2.0" (51) | 4,400 | 1/32 (.78) | 1/16 (1.6) | 3/32 (2.4) | 3/32 (2.4) | Single | ||||
| 8248-B30-2 | 2.0" (51) | 2,700 | 1/16 (1.6) | 3/32 (2.4) | 1/8 (3.2) | 1/8 (3.2) | 90 (400) | 1.5 (42) | 77 | 5/32(4.0) | Single |
| 8248-B8-2 | 2.0" (51) | 900 | 1/8 (3.2) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Double | ||||
| 8248-B45-3 | 3.0" (76) | 4,400 | 1/32 (.78) | 1/16 (1.6) | 3/32 (2.4) | 3/32 (2.4) | Single | ||||
| 8248-B30-3 | 3.0" (76) | 2,700 | 1/16 (1.6) | 3/32 (2.4) | 1/8 (3.2) | 1/8 (3.2) | 90 (400) | 1.5 (42) | 77 | 5/32(4.0) | Single |
| 8248-B8-3 | 3.0" (76) | 900 | 1/8 (3.2) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Double | ||||
| PAR-A-MATIC SERIES | |||||||||||
| 8258-C50-1 | 1-1/4" (32) | 5,000 | 1/16 (1.6) | 1/8 (3.2) | 1/8 (3.2) | Single | |||||
| 8258-C28-1 | 1-1/4" (32) | 2,800 | 3/64 (1.2) | 1/8 (3.2) | 3/16 (4.5) | 3/16 (4.5) | Single | ||||
| 8258-C21-1 | 1-1/4" (32) | 2,100 | 5/64 (1.9) | 5/32 (4.0) | 7/32 (5.6) | 7/32 (5.6) | 170 (756) | 2.3 (65) | 74 | 1/4 (6.4) | Single |
| 8258-C14-1 | 1-1/4" (32) | 1,450 | 7/64 (2.7) | 3/16 (4.5) | 1/4 (6.4) | 1/4 (6.4) | Double | ||||
| 8258-C8-1 | 1-1/4" (32) | 850 | 11/64 (4.3) | 1/4 (6.4) | 9/32 (7.1) | 9/32 (7.1) | Double | ||||
| 8258-C5-1 | 1-1/4" (32) | 500 | 1/4 (6.4) | 1/4 (6.4) | 5/16 (7.9) | 5/16 (7.9) | Double | ||||
| 8258-C50-2 | 2.0" (51) | 5,000 | 1/16 (1.6) | 1/8 (3.2) | 1/8 (3.2) | Single | |||||
| 8258-C28-2 | 2.0" (51) | 2,800 | 3/64 (1.2) | 1/8 (3.2) | 3/16 (4.5) | 3/16 (4.5) | Single | ||||
| 8258-C21-2 | 2.0" (51) | 2,100 | 5/64 (1.9) | 5/32 (4.0) | 7/32 (5.6) | 7/32 (5.6) | 170 (756) | 2.3 (65) | 74 | 1/4 (6.4) | Single |
| 8258-C14-2 | 2.0" (51) | 1,450 | 7/64 (2.7) | 3/16 (4.5) | 1/4 (6.4) | 1/4 (6.4) | Double | ||||
| 8258-C8-2 | 2.0" (51) | 850 | 11/64 (4.3) | 1/4 (6.4) | 9/32 (7.1) | 9/32 (7.1) | Double | ||||
| 8258-C5-2 | 2.0" (51) | 500 | 1/4 (6.4) | 1/4 (6.4) | 5/16 (7.9) | 5/16 (7.9) | Double | ||||
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