Product Description
50-Piece Cobalt Jobber Drill Bit Set for Metal Drilling
Drilling into stainless steel, cast iron, nickel alloys, and other hard metals requires bits that can handle heat, friction, and repeated use. The POWERTEC 50-Piece Cobalt Jobber Drill Bit Set is designed for precise, durable metal drilling with five commonly used metric sizes: 1mm, 1.5mm, 2mm, 2.5mm, and 3mm.
Made from M35 high-speed steel with 5% cobalt, these drill bits deliver reliable cutting strength, enhanced wear resistance, and long-lasting performance for demanding metalworking applications. The 135° split point tip helps start holes quickly and accurately while reducing bit walking, making this set a practical choice for workshops, repair work, fabrication, and professional drilling tasks.
Ideal For
- Metalworking and fabrication projects
- Stainless steel drilling
- Cast iron drilling
- Nickel alloy and abrasive metal applications
- Workshop, maintenance, and repair use
- DIY users and professionals who need repeatable small-hole drilling
Why Choose This Drill Bit Set?
Standard drill bits can overheat, dull quickly, or wander when used on hard metals. This cobalt jobber drill bit set is engineered to improve drilling accuracy, reduce starting pressure, and extend tool life. With 10 pieces of each size included, users have backup bits ready for repetitive jobs, production work, or replacement when a frequently used size wears down.
Key Features & Benefits
135° Split Point Tip
- Provides fast, accurate starts with clean, centered holes
- Helps minimize bit walking while reducing the force required for drilling
M35 HSS with 5% Cobalt
- Manufactured from M35 high-speed steel with 5% cobalt for improved heat resistance
- Designed for enhanced wear resistance and extended tool life when drilling abrasive metals
Designed for Hard Metal Applications
- Ideal for stainless steel, cast iron, nickel alloys, and other hard metals
- Delivers dependable cutting strength and penetration durability for demanding jobs
Wide Drill Chuck Compatibility
- Compatible with both keyed and keyless drill chucks
- Suitable for a broad range of drilling setups and shop applications
Long-Lasting Value
- Can be repeatedly sharpened without compromising cutting performance
- Helps extend tool life and lower the cost per hole over time
Package Includes
- 1mm Cobalt Drill Bits × 10
- 1.5mm Cobalt Drill Bits × 10
- 2mm Cobalt Drill Bits × 10
- 2.5mm Cobalt Drill Bits × 10
- 3mm Cobalt Drill Bits × 10
- Total Quantity: 50 Pieces
Specifications
- Material: M35 High-Speed Steel with 5% Cobalt
- Point Angle: 135°
- Tip Type: Split Point
- Flute Type: Spiral Flute
- Shank Type: Straight Shank
- Sizes Included: 1mm, 1.5mm, 2mm, 2.5mm, 3mm
Frequently Asked Questions
What is this cobalt drill bit set used for?
This set is used for drilling small, accurate holes in stainless steel, cast iron, nickel alloys, hard metals, and other demanding materials.
What sizes are included in this set?
The set includes 10 pieces each of 1mm, 1.5mm, 2mm, 2.5mm, and 3mm cobalt drill bits, for a total of 50 pieces.
Why use cobalt drill bits for metal?
Cobalt drill bits provide better heat resistance and wear resistance than standard drill bits, making them more suitable for hard and abrasive metals.
What does the 135° split point tip do?
The 135° split point tip helps the bit start faster, stay centered, and reduce walking when drilling into metal surfaces.
Can these bits be used with keyless drill chucks?
Yes. These straight shank drill bits are compatible with both keyed and keyless drill chucks.
Can these drill bits be sharpened?
Yes. These cobalt drill bits can be repeatedly sharpened to help maintain cutting performance and extend usable tool life.
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