1/4 Cobalt Drill Bit
| Weight | 0.070000 |
|---|
1/4" Cobalt Drill Bit
Engineered for high-performance drilling in abrasive and hard materials, the 1/4" M35 Cobalt Drill Bit offers superior heat resistance and durability. Its aggressive 135° split-point tip prevents "walking" and ensures clean, precise holes in stainless steel, cast iron, and other tough alloys.
- M35 Material (5% Cobalt)
- 135° Split-Point Geometry
- High Heat Resistance (up to 1100°F)
- Application: Stainless Steel & Hard Metals
This 1/4" Cobalt Drill Bit is constructed from M35 grade high-speed steel, an alloy containing 5% cobalt. This composition significantly increases the bit's red hardness, allowing it to maintain its cutting edge integrity at temperatures up to 1100°F. The 135° split-point tip is self-centering, eliminating the need for a pilot hole and reducing the required thrust. This advanced geometry ensures faster penetration and extends the tool's life when drilling into tough, heat-generating materials common in industrial fabrication and MRO settings.
Ideal for demanding applications, this cobalt drill bit excels at drilling into stainless steel, hardened steel, cast iron, and titanium. It is a critical tool for metal fabricators, maintenance professionals, and mechanics who require reliable performance and longevity from their cutting tools. Whether used in a drill press for production work or a handheld drill for on-site repairs, its robust design delivers consistent, high-quality results in the most challenging industrial environments.
Specifications
- Material: M35 High-Speed Steel (5% Cobalt)
- Standards: Meets or exceeds ANSI/ASME B94.11M standards
- Strength/Tensile: High red hardness, heat resistant to 1100°F
- Dimensions: 1/4" Diameter
- Finish: Bronze / Gold Oxide Finish
- Certifications: Material composition certifications available upon request.
Applications
- Fabrication & Welding: Drilling pilot holes in stainless steel frames, structural components, and custom parts.
- Automotive & Machinery Repair: Removing broken bolts and drilling into hardened engine or machinery components.
- Industrial Maintenance (MRO): On-site repairs of heavy equipment, drilling into cast iron housings and wear plates.
- Aerospace & Tooling: Precision drilling in tough alloys and tool steels where heat generation is a concern.
Target Users
This industrial-grade drill bit is designed for professional fabricators, welders, mechanics, and maintenance technicians who work with difficult-to-machine metals in commercial settings.
Finish Options
Cobalt drill bits typically feature a distinctive gold or bronze-colored oxide surface finish. This finish is a result of the heat treatment process and helps to reduce friction and increase wear resistance during drilling operations.
How to Measure
Drill bits are specified by their diameter. Ensure you select the correct diameter required for your pilot hole or final hole size. For this product, the diameter is 1/4 inch.
Example: Order "1/4 inch Cobalt Drill Bit (M35)" for drilling into stainless steel.
Order Checklist
- Product name and required diameter (e.g., 1/4")
- Grade/material specification (Cobalt M35) and quantity
- Confirm material to be drilled (e.g., Stainless Steel, Cast Iron)
- Check for bulk pack or individual unit requirements
- Certifications required (if any)
- Special handling or delivery requirements
Quick Facts
- Product
- 1/4" Cobalt Drill Bit
- Material
- M35 High-Speed Steel (5% Cobalt)
- Standards
- ANSI/ASME B94.11M (Performance)
- Key Properties
- High heat resistance, 135° split-point tip, self-centering, designed for hard metals.
- Primary Applications
- Stainless Steel, Cast Iron, Hardened Steel
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock a comprehensive range of cobalt drill bits in fractional, letter, and number sizes. Common fractional sizes from 1/16" to 1/2" are available for immediate pickup in our Los Angeles warehouse.
Custom sizes and cutting services are available.
Contact for Sizing-
1/4 Cobalt Drill Bit$9.35
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1/2 Cobalt Drill Bit$5.99 -
1/8 Cobalt Drill Bit$4.97