How to buy original SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bits in India?

All SPKLINE drill bits are sourced from authorized US retailers and brand partners, ensuring 100% authenticity. They arrive factory-sealed with all customs duties and GST pre-paid. We provide ExpressBox tracked shipping for your peace of mind.

What materials can these SPKLINE M35 Cobalt drill bits drill through?

These bits are designed for tough materials including stainless steel, light-gauge metal, high-carbon steel, aluminum, alloy steel, cast iron, abrasive alloy metal, hardened steel, PCB boards, plastic, and wood. They offer 4x the life of normal metal drill bits on harder surfaces.

Will these 3.2mm (1/8") hex shank drill bits work in a regular corded drill?

Yes, the straight hex shank fits directly into standard three-jaw keyless or keyed drill chucks, as well as impact drivers. Ensure your chuck can securely grip the 1/4" hex shank for safe and effective drilling.

How do SPKLINE Cobalt drill bits compare to local Indian alternatives?

SPKLINE M35 Cobalt bits offer superior heat and abrasion resistance compared to many standard HSS drill bits found locally. This means longer life and better performance on hard metals and stainless steel, with the added benefit of all import duties being included in the price.

What is the lifespan of these drill bits?

These M35 Cobalt drill bits offer up to 4 times the lifespan of normal metal drill bits, especially when drilling into harder materials. For optimal results and prolonged life on very hard materials, applying drilling or cooling oil is recommended.

Are these drill bits suitable for drilling hardened steel?

Yes, the M35 Cobalt alloy construction makes these drill bits highly resistant to heat and abrasion, enabling them to effectively drill through hardened steel and other very hard metals. Using drilling oil can further enhance performance and lifespan.

What is the difference between HSS and Cobalt drill bits?

Cobalt drill bits, like these M35 grade ones, contain cobalt alloy which increases their hardness and heat resistance compared to standard High Speed Steel (HSS) bits. This makes them ideal for drilling harder metals and stainless steel, offering a longer lifespan.

SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bits | M35 HSS Steel for Hard Metal

Name: SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bit Set | M35 High Speed Steel Jobber Length Twist Bits for Hard Metal
Brand: SPKLINE
SKU: sqg0925
Price: 1278.00 INR
Availability: InStock

About this item

SPKLINE 10 Pcs 3.2mm (1/8") M35 Cobalt drill bit set provides professional precision for demanding tasks. Made from industrial-grade High Speed Steel with 5% cobalt alloy, these bits are heat and abrasion-resistant, offering superior performance on stainless steel, light-gauge metal, high-carbon steel, aluminum, cast iron, and hardened steel. The 135-degree split-point tip ensures immediate, accurate drilling without walking, making them ideal for professionals and DIYers alike. Each bit measures 65mm total length with a 35mm working length and a straight shank for compatibility with most drills. This set is designed for heavy-duty use and offers up to 4 times the lifespan of normal metal drill bits on harder materials. For optimal results and extended life when drilling very hard materials, apply drilling or cooling oil. Packed in a convenient plastic box for easy storage and transport.

These M35 cobalt drill bits are engineered for durability and efficiency. The split-point tip design allows for self-centering, reducing the need for a pilot hole and preventing bit wandering on surfaces like metal, plastic, wood, and PCB boards. The high-speed steel construction with cobalt alloy ensures they can withstand higher temperatures generated during drilling hard metals, maintaining their sharpness and integrity. Professionals in metalworking workshops, IT hardware engineers, and craftsmen will find these bits invaluable for precise hole creation in challenging materials.

Compared to standard drill bits, these SPKLINE cobalt bits offer significantly longer life and faster drilling speeds, especially in hardened steel and stainless steel. While local alternatives might offer basic HSS bits, this M35 cobalt alloy provides enhanced toughness and heat resistance crucial for professional applications. The set includes 10 bits, each with a 3.2mm (1/8") diameter, perfect for a range of common drilling tasks. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping.

Key Features

10 pcs 3.2 mm (1/8") cobalt drill bit set for precise hole drilling into various material. Total 65 mm long with 35 mm working length
Very tough drill bit for heavy duty work drilling into stainless steel, light-gauge metal, high-carbon steel, aluminum and alloy steel, cast iron, abrasive alloy metal, other hard metal and hardened steel. 4 times life time than normal metal drill bit when drilling into PCB board, plastic, wood, jewelry, sheet metal and normal steel
M35 Cobalt drill bits are made from industrial grade High Speed Steel with 5% cobalt alloy that is heat and abrasion-resistant
135-degree split-point tip starts drilling immediately with less force and eliminates walking or skating across the work surface
Straight shank fits with electric and cordless power drill and rotary drill. Drill bits are packed in a plastic Box that is convenient to carry and store

Why choose this product

Engineered for Tough Materials

SPKLINE M35 Cobalt drill bits are crafted for professionals who demand precision and durability. The industrial-grade High Speed Steel infused with 5% cobalt alloy provides exceptional heat and abrasion resistance. This formulation allows for efficient drilling through challenging materials like stainless steel, hardened steel, cast iron, and abrasive alloys, where standard bits would quickly dull or break. The 135-degree split-point tip ensures immediate penetration and stability, preventing bit wander and ensuring clean, accurate holes. Professionals in metalworking, IT hardware, and craftsmen will appreciate the heavy-duty performance and extended tool life, making them a reliable choice for demanding applications.

Ideal for Metalworkers, Who Should Consider Alternatives

These SPKLINE M35 Cobalt drill bits are perfect for professionals and serious DIYers working with stainless steel, hardened steel, cast iron, and other tough metals. They are also effective on plastics, wood, and PCB boards. However, if you primarily drill soft woods or plastics and do not require extreme heat resistance or durability, standard HSS bits might suffice. For masonry or concrete drilling, specialized masonry bits are required. If you are using a very old drill with a keyed chuck that cannot firmly grip a 1/4" hex shank, consider a set with round shanks.

How to use

Choose the appropriate SPKLINE 3.2mm (1/8") Cobalt drill bit for your material. Ensure your drill chuck can securely grip the straight hex shank. For very hard metals, have drilling or cooling oil ready. — Select the Right Bit and Drill
Place the bit tip on your marked drilling point. The 135° split-point tip allows for immediate, self-centering drilling with minimal pressure. Avoid excessive force initially to prevent bit damage. — Position and Start Drilling
Drill at a steady speed, applying consistent pressure. For stainless steel, hardened steel, or other very hard materials, apply drilling or cooling oil to reduce friction, improve chip removal, and extend bit life. — Drill with Lubrication (If Needed)
Once drilling is complete, carefully remove the bit. Clean any metal shavings or residue from the bit and store it in the provided plastic box to protect it from moisture and damage. — Clean and Store

Example scenarios

Typical situations where SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bit Set | M35 High Speed Steel Jobber Length Twist Bits for Hard Metal helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

An IT hardware engineer in Bangalore needs to drill precise holes in metal casings for custom repairs.

How this product helps

The SPKLINE 3.2mm M35 Cobalt drill bits ensure accurate hole placement on thin metal and plastic components. The 135° split-point tip prevents slipping on smooth surfaces, and the cobalt alloy provides durability for repeated use in a professional setting.

Scenario 2

Illustrative example

Where it helps

A metalworking craftsman in Delhi needs reliable bits for drilling stainless steel and hardened components.

How this product helps

These SPKLINE Cobalt drill bits are designed for tough materials like stainless steel and hardened alloys. Their heat and abrasion resistance ensure a longer lifespan and consistent performance, reducing downtime and improving the quality of finished metal parts.

Specifications & installation

Specifications

Primary Material	High Speed Steel (HSS)
Cobalt Content	5%
Alloy Grade	M35
Free From	No specific claims

Installation & usage

Recommended Materials	Stainless Steel, light-gauge metal, high-carbon steel, aluminum, alloy steel, cast iron, abrasive alloy metal, hardened steel, PCB board, plastic, wood, jewelry, sheet metal, normal steel
Drilling Method	Use with electric and cordless power drills, rotary drills. Apply drilling or cooling oil for very hard materials.
Cost per use	10 bits at 3.2mm diameter: ₹128 per bit
Shelf life after opening	12 months (standard for metal tools, store dry)
Reapplication math	Not applicable for tools; lifespan depends on usage and material hardness.
Contraindications	Not for masonry or concrete drilling. Ensure drill chuck can securely grip 1/4" hex shank.
Allergens / common irritants	Metal dust may be generated during use; wear appropriate safety gear.

How we compare

Feature	SPKLINE 10 Pcs	Others
Material & Durability	M35 Cobalt High Speed Steel (HSS) with 5% Cobalt. Heat & abrasion resistant. Up to 4x longer life.	Standard HSS drill bits. May offer lower heat resistance and shorter lifespan on hard metals. Varies by brand.
Hard Metal Drilling	Excellent performance on stainless steel, hardened steel, cast iron, and other tough alloys.	May struggle with hardened steel and stainless steel; often requires slower speeds or specialized bits. Varies by brand.
Tip Geometry	135° Split Point for immediate start, no walking, precise holes.	Often 118° standard point; may require center punching. Split points are less common on basic sets.
Cost per bit	10 bits at 3.2mm: ₹128 per bit	Local HSS 3.2mm bits can range from ₹30-₹80 per bit, depending on brand and quality.
Set Contents	10 pcs, 3.2mm (1/8"), 65mm total length, 35mm working length, straight shank.

SKU	sqg0925
GTIN	0784099652042
Brand	SPKLINE
Set Name	10-piece
Material	High Speed Steel with 5% Cobalt Alloy (M35)
Shank Type	Straight
Shank Diameter	3.2 mm (1/8")
Total Length	65 mm (2.56 inches)
Working Length	35 mm (1.38 inches)
Tip Point	135-degree Split Point
Number of Flutes	2
Package Quantity	10 pieces
Package Type	Plastic Box
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bit Set | M35 High Speed Steel Jobber Length Twist Bits for Hard Metal

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