Description
The Irwin 3/8″ Cobalt 135 Degree Jobber Length Drill Bit (63124) is a heavy-duty tool engineered for drilling into challenging materials. Its core strength lies in its M-35 5% Cobalt High-Speed Steel (HSS-Co) construction, which provides exceptional heat and abrasion resistance. This is crucial when working with tough metals like stainless steel, titanium, and other hardened alloys, as it prevents the bit from dulling quickly.
KEY FEATURES AND BENEFITS:
- Precision-ground split point: 135-degree tip eliminates walking and enables accurate starts
- High-performance material: M-35 5% cobalt alloy provides superior heat and wear resistance
- Straight shank: Compatible with all standard 3/8-inch drill chucks
- Heavy-duty spiral flutes: Efficient chip ejection and heat reduction
- Gold oxide finish: Enhances lubrication and corrosion resistance
- Jobber length design: Provides reach and stability for general-purpose drilling
- Low feed pressure: Makes drilling through hard materials easier
- Material versatility: Suitable for hardened steel, cast iron, and stainless steel
SPECIFICATIONS:
- Drill Bit Size: 3/8 inch (0.375 inch)
- Material: M-35 5% Cobalt High-Speed Steel (HSS-Co)
- Point Angle: 135 degrees
- Point Type: Split Point
- Shank Diameter: 3/8 inch
- Overall Length: 5 inches
- Flute Length: 3-5/8 inches
- Finish: Gold Oxide / Bright
- Package Contents: 1 Irwin 3/8″ Cobalt Drill Bit (63124)
HOW TO USE:
- Preparation: Ensure your drill is compatible with a 3/8-inch straight shank. Securely clamp your workpiece to prevent it from moving during drilling. Use a cutting fluid or lubricant, especially when drilling hard metals like stainless steel, to extend the life of the bit and improve the quality of the cut.
- Installation: Insert the drill bit into the drill chuck and tighten it firmly. Make sure the bit is centered and not wobbling.
- Positioning: Place the tip of the drill bit directly on the mark where you want to drill. The 135-degree split point will help it stay in place.
- Drilling: Begin drilling at a slow to medium speed, applying steady, consistent pressure. Avoid excessive force, which can cause the bit to overheat or break. Let the bit’s design do the work.
- Chip Clearing: Periodically pull the bit out of the hole to clear chips and allow the bit to cool down, especially in deep holes. The heavy-duty flutes will assist in this process.
- Completion: Once the hole is drilled, retract the bit and clean up the workpiece.
BENEFITS OF USING IRWIN 3/8″ COBALT 135 DEGREE JOBBER LENGTH DRILL BIT (63124):
- Heat resistance: Operates at higher temperatures without losing hardness
- Time-saving design: Split point eliminates the need for a pilot hole or center punch
- Durability: Outlasts standard HSS bits for a better return on investment
- Precision: Starts holes exactly where intended for improved accuracy
- Reliability: Performs consistently even in tough applications
FEATURES:
- 135-degree precision-ground split point prevents walking and ensures fast starts
- Constructed from M-35 cobalt alloy for extended durability and heat resistance
- Compatible with standard 3/8-inch chucks due to straight shank design
- Spiral flutes facilitate chip removal and reduce overheating
- Gold oxide coating adds lubrication and rust resistance
- Ideal for general-purpose drilling with jobber length for optimal balance
- Reduced feed pressure required for easier penetration in tough materials
- Excellent for use on stainless steel, hardened steel, and cast iron
