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Description
IRWIN 15-Piece Cobalt Alloy Steel Drill Bit Set 63137 Fractional Straight Shank Jobber Length for Drilling Hardened Metal and Abrasive MaterialsConquer Hardened Steel: The Cobalt Drill Bit Set for Extreme Metalworking When high speed steel fails, you need **Cobalt**. This IRWIN 15 Piece Cobalt Alloy Steel Drill Bit Set (63137) is engineered with premium M 42 5% Cobalt Alloy Steel, providing **superior abrasive resistance** and high heat tolerance. This makes it the ideal solution for drilling into **hardened steel**, stainless steel, cast iron, and other tough, high tensile strength materials
Conquer Hardened Steel: The Cobalt Drill Bit Set for Extreme Metalworking
When high-speed steel fails, you need **Cobalt**. This IRWIN 15-Piece Cobalt Alloy Steel Drill Bit Set (63137) is engineered with premium M-42 5% Cobalt Alloy Steel, providing **superior abrasive resistance** and high heat tolerance. This makes it the ideal solution for drilling into **hardened steel**, stainless steel, cast iron, and other tough, high-tensile strength materials that quickly destroy standard bits. Whether you're working in fabrication, automotive, or industrial repair, these **Jobber Length** bits deliver unmatched durability and precision.
Key Features for Durability and Precision
- Cobalt Alloy Steel: Constructed of M-42 5% Cobalt Alloy Steel for exceptional resistance to abrasion and heat when drilling the toughest metals.
- Precision Designed Tip: Features a 135° split-point tip that eliminates drill "walking" and reduces feed pressure, allowing for easier, more immediate penetration without hardening the workpiece.
- Faster Chip Ejection: Heavy-duty spiral flute design quickly produces and ejects chips, preventing heat buildup and extending tool life.
- Reduced Torque: Shorter cutting lips minimize torque, making it easier to drill smoothly in high-tensile strength materials.
- Complete Fractional Set: Includes 15 of the most common fractional sizes to cover a wide range of job demands.
What's Included
- Fifteen (15) Cobalt Alloy Steel Drill Bits: Sizes 1/16" through 1/2" in 1/32" Increments
- One (1) Durable Metal Index Case (for easy organization and protection)
Specifications Table
| Material: | Cobalt Alloy Steel (M-42 5%) |
|---|---|
| Tip Angle: | 135-Degree Split Point |
| Shank Type: | Straight Shank (Fits keyed or keyless chucks) |
| Bit Style: | Jobber Length |
| Size Range: | 1/16" to 1/2" (Fractional) |
| Case Included: | Metal Index Case |
To power these superior bits through the toughest concrete and hardened masonry, you need a hammer that can keep up. Upgrade your drilling capability by adding the powerful **DEWALT** 1-1/8" Handle SDS Rotary Hammer Kit (D25263K) to your arsenal—it delivers 3.0 Joules of impact energy with anti-vibration control.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy