Irwin 3-5/8″ Carded Cobalt 135 Degree Jobber Drill Bit (3016013)

Description

The Irwin 3-5/8″ Carded Cobalt 135 Degree Jobber Drill Bit (3016013) is a specialized cutting tool engineered for high-performance drilling in the toughest materials. Made from a premium high-speed steel alloy containing 5% cobalt, this bit is designed to withstand the extreme heat and abrasion encountered when working with hard metals. The 135-degree split point tip is a standout feature, enabling the bit to start drilling instantly without slipping or “walking” across the material’s surface, which provides a more accurate and cleaner entry point for every hole. This design also reduces the pressure needed to begin drilling, making your work more efficient.

KEY FEATURES AND BENEFITS:

• Superior Heat and Abrasion Resistance: The high-speed steel with 5% cobalt alloy allows the bit to maintain its hardness and sharpness even at high temperatures, significantly extending its life when drilling into tough, abrasive materials.
• Precision and Accuracy: The 135-degree split point starts drilling immediately on contact, preventing the bit from wandering and eliminating the need for a pilot hole. This results in cleaner, more accurate holes from the first pass.
• Reduced Drilling Pressure: The split-point design minimizes the force required to feed the bit into the material, reducing user fatigue and making the drilling process smoother and more controlled.
• Enhanced Strength: A robust, heavy-duty web construction provides added strength and rigidity, preventing the bit from bending or breaking under stress during tough applications.

SPECIFICATIONS:

• Manufacturer: Irwin Industrial Tools
• Product Name: 3-5/8″ Carded Cobalt 135 Degree Jobber Drill Bit
• Model Number: 3016013
• Drill Bit Diameter: 13/64″
• Overall Length: 3-5/8″
• Flute Length: 2-7/16″
• Shank Diameter: 13/64″
• Shank Style: Straight
• Point Angle: 135 degrees
• Point Type: Split point
• Material: High-Speed Steel (HSS) with 5% Cobalt (M-35)
• Finish: Gold Oxide or Bright

HOW TO USE:

1. Prepare the Drill: Securely insert the straight shank of the Irwin drill bit into the chuck of your drill or drill press. Tighten the chuck firmly to prevent the bit from slipping.
2. Mark the Spot: Clearly mark the location on your workpiece where you intend to drill. The split point on this bit minimizes walking, but a marked spot ensures perfect placement.
3. Start Drilling: Position the tip of the bit directly on your marked spot. Apply steady, moderate pressure to the drill and begin drilling at a low to medium speed. The 135-degree split point will engage the material quickly.
4. Maintain Consistent Pressure: As the bit cuts, maintain consistent pressure and speed. For very hard materials, you may need to use a cutting fluid or lubricant to dissipate heat and prolong the life of the bit.
5. Clean the Hole: Periodically withdraw the drill bit from the hole to clear chips and debris. This prevents the flutes from clogging and keeps the bit from overheating. Once the hole is complete, remove the bit and clean any remaining shavings from the workpiece.

BENEFITS OF USING IRWIN 3-5/8″ CARDED COBALT 135 DEGREE JOBBER DRILL BIT (3016013):

• This drill bit is engineered for demanding tasks, providing a significant advantage over standard HSS bits.
• The cobalt alloy construction offers exceptional heat resistance, which is critical when drilling through materials that generate high friction and heat.
• This resistance translates directly into a longer tool life, saving you time and money on replacements.
• The split-point design not only makes for an easier start but also reduces the risk of marring your workpiece, providing a professional finish.
• Its robust construction ensures it can handle the toughest jobs, making it a reliable and cost-effective choice for professionals and serious hobbyists.

FEATURES:

• Durable heavy-duty web construction
• Made with 5% cobalt alloy for enhanced performance
• 135-degree split-point design for quick starts
• Straight shank for wide drill compatibility
• Right-hand cutting design
• Precision-ground flutes for smooth chip removal
• Specially designed for drilling hard metals and abrasive materials
• High heat and wear resistance
• Standard jobber length for versatile use