Description
The Irwin 11/32″ x 4-3/4″ Black Oxide 135 Degree Jobber Drill Bit (67522) is a heavy-duty, professional-grade tool crafted for consistent performance across a wide range of materials. Designed with precision in mind, this jobber-length drill bit is an essential item for anyone from professional tradespeople to dedicated DIY enthusiasts. The bit’s construction with M-2 high-speed steel ensures it can withstand high temperatures and resist wear, providing a long service life. Its black oxide finish not only adds an extra layer of protection against rust and corrosion but also helps to reduce friction, allowing for smoother drilling and less heat buildup. The most notable feature is its 135-degree split point, which is specifically engineered to prevent the bit from “walking” or “skating” on the surface of your workpiece. This feature ensures that every hole starts exactly where you intend it to, leading to cleaner, more accurate results.
KEY FEATURES AND BENEFITS:
- 135-degree split point design: Eliminates the need for a center punch and ensures a precise hole location.
- Black oxide finish: Reduces friction and enhances corrosion resistance for longer lifespan.
- M-2 high-speed steel material: Maintains sharp cutting edge and handles high-stress applications.
- Versatile usability: Efficiently drills through metal, wood, and plastic.
- Heavy-duty construction: Ideal for both home and industrial projects.
SPECIFICATIONS:
- Model Number: 67522
- Material: M-2 High-Speed Steel (HSS)
- Diameter: 11/32 inches
- Overall Length: 4-3/4 inches
- Flute Length: 3-7/16 inches
- Point Type: 135-degree split point
- Shank Type: Straight
- Finish: Black Oxide
HOW TO USE:
- Select the Right Speed: Choose a rotational speed on your drill that is appropriate for the material you are drilling. Slower speeds are generally better for harder materials like metal, while faster speeds are suitable for softer materials like wood and plastic.
- Secure the Bit: Insert the straight shank of the drill bit into your drill’s chuck. Tighten the chuck firmly to ensure the bit is secure and centered, preventing wobble during use.
- Prepare the Workpiece: For best results, secure your material in a vise or with clamps to prevent it from moving while drilling. Mark the exact spot where you want to drill.
- Initiate Drilling: Place the 135-degree split point of the bit directly on your marked spot. Begin drilling by applying light, steady pressure. The split point will prevent the bit from walking, so a slow, controlled start is key.
- Maintain Pressure: Continue drilling by maintaining a consistent, even pressure. Allow the bit’s cutting edges to do the work. Avoid excessive force, as this can overheat the bit and damage both the bit and the material.
- Clear Debris: Periodically pull the bit out of the hole to clear chips and debris, especially when drilling deep holes in metal. This helps to prevent clogging and overheating.
BENEFITS OF USING IRWIN 11/32″ X 4-3/4″ BLACK OXIDE 135 DEGREE JOBBER DRILL BIT (67522):
- Durable construction: M-2 high-speed steel ensures exceptional strength and long service life.
- Reduced friction: Black oxide coating minimizes heat buildup for prolonged use.
- No pilot hole needed: 135-degree split point starts drilling instantly, saving time.
- Accurate drilling: Prevents bit from wandering, ensuring clean and precise holes.
- Multi-material compatibility: Effective on metal, wood, and plastic, making it highly practical.
FEATURES:
- Heavy-duty M-2 high-speed steel for long-lasting performance.
- 135-degree split point for precise starts and preventing bit walking.
- Black oxide coating to reduce friction and provide corrosion resistance.
- Jobber length design (4-3/4″ overall) suitable for general-purpose drilling.
- Engineered to drill effectively in metal, wood, and plastic.
- Straight shank for secure and reliable grip in drill chucks.
- Single-piece construction ensures durability under load.
- Spiral flutes for efficient chip and debris removal during drilling.
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