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M35 Cobalt Drill Bit Set | High-Speed Steel for Metal & Stainless Steel

Stock #:TBS-00166

SKU:ACCS-00039

M35 Cobalt Drill Bit Set | High-Speed Steel for Metal & Stainless Steel - Image 1

$45.95

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Engineered for demanding tasks, the SLUGB Cobalt High Speed Steel Twist Drill Bit M35 Tool Set delivers superior performance in hard materials. The M35 cobalt steel alloy (5% cobalt) provides exceptio...

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M35 Cobalt Drill Bit Set | High-Speed Steel for Metal & Stainless Steel

$45.95

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Questions about this product

Can these bits drill stainless steel?: Yes, that's what they're built for. The M35 cobalt steel with 5% cobalt resists heat and holds its edge in stainless and alloy steel. Use cutting oil and moderate speed for the cleanest holes and longest bit life.
What sizes come in this 13-piece set?: You get 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, and 8mm bits. They ship in a plastic storage case to keep them sorted. That range covers most common metalworking holes.
How are M35 cobalt bits better than regular HSS?: The 5% cobalt content makes them run cooler and stay sharp longer in hard metals. Standard HSS bits dull fast and can burn out in stainless. The 135-degree split point also starts without walking, so they bite right where you mark.

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SLUGB M35 Cobalt High Speed Steel twist drill bit set for metal and stainless steel, presented in a durable plastic case.

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Engineered for demanding tasks, the SLUGB Cobalt High Speed Steel Twist Drill Bit M35 Tool Set delivers superior performance in hard materials. The M35 cobalt steel alloy (5% cobalt) provides exceptional heat resistance and edge retention, significantly outperforming standard HSS bits when drilling stainless steel, alloy steel, and other tough metals. Features and Benefits - M35 Cobalt HSS Construction (5% Cobalt) - Offers superior heat resistance and hardness, maintaining a sharp cutting edge longer than standard bits for consistent, clean holes in hardened materials. - 135-Degree Split Point Design - Ensures precise starting without walking or skidding, reducing setup time and improving accuracy on curved or angled surfaces. - Optimized Flute Geometry - Efficiently channels chips away from the cutting edge, preventing clogging and reducing heat buildup for smoother, faster drilling. - Black Oxide Surface Treatment - Provides enhanced corrosion resistance and additional lubricity, reducing friction and extending the overall service life of the bits. - Complete Range of Sizes in a Durable Case - A comprehensive selection of commonly used diameters ensures you have the right bit for the job, all securely organized for protection and portability. Applications - Professional Metal Fabrication - Ideal for workshops and job sites requiring reliable, repeated drilling in stainless steel plates, structural steel, and high-tensile alloys. - Automotive and Machinery Repair - Perfect for drilling hardened bolts, exhaust components, engine brackets, and other tough metals encountered in maintenance and restoration. - DIY Home and Workshop Projects - An excellent choice for enthusiasts tackling metalworking projects, from building furniture frames to installing fixtures in metal studs. - HVAC and Plumbing Installation - Effectively drills through stainless steel pipes, ductwork, and brackets commonly used in commercial and residential systems. Note For optimal performance and longevity, use a sturdy drill press or powerful handheld drill at appropriate RPMs and apply consistent cutting fluid when drilling stainless steel or other hard alloys.

Drill Bit Sizes: 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8 mm. Material: M35 Cobalt High-Speed Steel. Storage Case Material: Plastic. Application: Metal, Stainless Steel. Bit Type: Twist Drill. Drill Bit Set Quantity: 13. Flute Length: 52 mm. Overall Length: 89 mm. Point Angle: 135°. Shank Diameter: 10 mm. Shank Type: Round. Diameter Range: Varies per set (e.g., 1mm to 10mm or 1/16" to 3/8"). Flute Length: Standard Jobber Length. Overall Length: Varies per piece in set (e.g., 2xD to 5xD of diameter). Shank Diameter Tolerance: h6. Material: M35 Cobalt High-Speed Steel (HSS-Co 5%). Maximum Recommended Speed: 35 m/min Surface Speed for Stainless Steel. Chuck Compatibility: Standard 3-jaw keyed or keyless drill chucks. Compliance: DIN 338 / ISO 235 Standard (Inferred for HSS twist drills). Coolant Recommendation: Use cutting fluid or oil for optimal performance and tool life. Drill Bit Set Quantity: Multiple pieces (e.g., 10, 15, or 20-piece set). Drill Bit Type: Twist Drill Bit. Flute Type: Spiral Flute. Hardness: 64-66 HRC. Heat Treatment: Vacuum Hardened and Triple Tempered. Helix Angle: 30° (Standard Helix). Intended Application: Metal Drilling, Stainless Steel Drilling. Point Angle: 135° Split Point. Shank Type: Round Straight Shank. Surface Finish: Bright Finish (Uncoated). Q: What are the specifications and included sizes for the SLUGB Cobalt High Speed Steel Twist Drill Bit set? A: The SLUGB drill bit set is designed for metalworking and includes a range of sizes for versatile use. While specific sizes are not listed, M35 cobalt high-speed steel bits typically come in a graduated set covering common diameters for drilling metal and stainless steel.. Q: How durable are these M35 cobalt drill bits for drilling into hardened steel or stainless steel? A: The M35 cobalt high-speed steel construction provides excellent durability and heat resistance, making these bits well-suited for tough materials like stainless steel and hardened steel. They maintain a sharp cutting edge longer than standard HSS bits, offering reliable performance for demanding tasks.. Q: Can I use these SLUGB cobalt drill bits with a standard cordless drill or do I need a drill press? A: Yes, these SLUGB cobalt twist drill bits are fully compatible with standard cordless drills, hammer drills (in drill-only mode), and drill presses. They are designed for the high torque and speeds used in metal drilling applications with common power tools.. Q: Does the SLUGB Cobalt High Speed Steel Drill Bit set come with any warranty or guarantee? A: Warranty details are not specified for this product. For information regarding any product guarantee or replacement policy, please refer to the seller's product listing or contact them directly before purchase.. Q: Is the SLUGB M35 drill bit set a good value compared to premium brand options? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. The M35 cobalt construction delivers reliable performance for drilling metal and stainless steel, making it a cost-effective choice for regular use..