How to buy original SPKLINE Cobalt Drill Bits in India?

SPKLINE Cobalt Drill Bits are sourced directly from authorized US retailers and authorized brand partners, ensuring 100% authenticity. They are factory-sealed and imported per order, with all customs duties and GST included in the listed price. Delivery is via ExpressBox tracked service, arriving within 12-14 days.

What material can these SPKLINE Cobalt drill bits drill through?

These M35 Cobalt HSS drill bits are designed for micro hole drilling in hard metals including stainless steel, high-carbon steel, aluminum, cast iron, and hardened steel. They also perform well on PCB boards, plastic, and wood, offering up to 4 times the life of standard bits on these materials.

Are these drill bits suitable for drilling aluminum?

Yes, the M35 Cobalt alloy in these bits helps dissipate heat faster and reduces chip welding when drilling aluminum. For best results, use a low drilling speed, apply cutting lubricant, maintain consistent pressure, and clear chips regularly to prevent jamming and ensure quality holes.

How long will these drill bits last?

SPKLINE Cobalt drill bits are rated for up to 4 times longer life than normal metal drill bits, especially when used on PCB boards, plastic, wood, and normal steel. For very hard materials, using drilling or cooling oil and maintaining proper technique can significantly prolong their lifespan.

What is the difference between these and standard metal drill bits?

These SPKLINE bits are made from M35 High Speed Steel alloyed with 5% cobalt, making them significantly tougher, more heat-resistant, and abrasion-resistant than standard HSS bits. This allows them to drill harder metals and last longer, especially in demanding applications.

Can I use these drill bits for general home repairs?

Yes, these bits are suitable for general home repairs involving metal, wood, or plastic. Their micro-size range and precision make them ideal for detailed tasks, but ensure your drill is compatible with the 1/4" hex shank for optimal performance.

What is the return policy for drill bits?

CrowCrowCrow offers a 14-Day Smile Guarantee for items that are wrong or damaged upon arrival. Opened drill bits are considered final sale unless defective. Free reverse pickup is available for eligible returns.

SPKLINE 10 Pcs Cobalt Drill Bit Set | High Speed Steel M35 Metal Drill Bits

Name: SPKLINE 10 Pcs Cobalt Drill Bit Set 1mm-3mm | 135° Split-Point M35 HSS Metal Drill Bits
Brand: SPKLINE
SKU: nkc1754
Price: 1213.00 INR
Availability: InStock

About this item

SPKLINE's 10-piece M35 Cobalt HSS drill bit set is engineered for precision micro hole drilling in demanding materials. Made from industrial-grade High Speed Steel with a 5% cobalt alloy, these bits offer superior heat and abrasion resistance, providing up to 4 times longer life than standard bits on materials like stainless steel, aluminum, plastic, and wood. The 135-degree split-point tip ensures immediate, accurate starts without walking, while the straight shank fits most standard drills and impact drivers.

These professional-grade bits are ideal for tasks requiring fine detail, such as PCB board drilling, IT hardware repairs, jewelry artistry, and processing hard metal parts. For optimal performance and extended bit life when drilling very hard materials or aluminum, use a cutting lubricant or paste and maintain low drilling speeds. Secure your workpiece and clear chips regularly to prevent jamming and ensure clean, precise holes.

While these SPKLINE bits offer enhanced durability for hard metals, they are best suited for DIYers and professionals who own impact drivers or drills with quick-change chucks. For users with only standard keyed chuck drills, ensure compatibility with the 1/4" hex shank. The set is packed in a convenient plastic bag for easy storage and transport.

Key Features

10 pcs mini size cobalt drill bit set for micro hole drilling into various material, it contains 2 pcs of each 1mm(3/64"), 1.5mm(1/16"), 2mm(5/64"), 2.5mm(3/32"), 3mm(1/8") diameter drill bit
Very tough drill bit for heavy duty work drilling into stainless steel, light-gauge metal, high-carbon steel, aluminum and ally 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 Bag

Why choose this product

Engineered for Tough Materials

SPKLINE M35 Cobalt drill bits are crafted for professionals and serious DIYers tackling demanding materials. Unlike standard bits that quickly dull on hardened steel or stainless steel, these bits utilize a high-speed steel base reinforced with 5% cobalt alloy. This composition significantly boosts heat and abrasion resistance, translating to a longer tool life and cleaner cuts. The 135-degree split-point tip is specifically designed to penetrate hard surfaces with less force, preventing the bit from skittering across the material. For those working with aluminum, the enhanced heat dissipation properties of cobalt bits help prevent chip welding, ensuring smoother drilling and better hole quality.

Ideal for Precision Tasks, Not for All Drills

This set is perfect for intricate work like drilling small holes in PCB boards, detailed jewelry making, or precise metal fabrication. However, these bits feature a straight 1/4" hex shank, primarily designed for impact drivers and quick-change chucks. If you primarily use older drills with keyed chucks that only accept round shanks, these bits may not fit securely. While they can drill wood and plastic, their strength lies in harder metals. For very soft metals or general-purpose drilling without an impact driver, consider a different bit type.

How to use

Choose the appropriate SPKLINE bit size (1mm to 3mm) for your micro hole drilling task. Ensure your drill or impact driver has a chuck compatible with a 1/4" hex shank. — Select the Right Bit
Secure your workpiece firmly. For hard metals like stainless steel or aluminum, apply a cutting lubricant or paste to the drilling area to reduce friction and heat. — Prepare for Drilling
Set your drill to a low speed, especially for aluminum. Apply steady, consistent pressure, allowing the bit to cut. Back the bit out of the hole frequently to clear chips and cool the bit. — Drill with Control
Always wear safety goggles to protect your eyes from flying debris. Continue to clear chips and use lubricant as needed to maintain bit sharpness and hole quality. — Ensure Safety

Example scenarios

Typical situations where SPKLINE 10 Pcs Cobalt Drill Bit Set 1mm-3mm | 135° Split-Point M35 HSS Metal Drill Bits helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

A hobbyist in a humid coastal city needs to drill small holes in stainless steel for a custom jewelry project.

How this product helps

SPKLINE's 1mm and 1.5mm cobalt bits are ideal for precise work on stainless steel. The M35 alloy resists heat buildup, crucial in humid environments where standard bits might overheat and dull faster, ensuring clean, accurate holes for intricate designs.

Scenario 2

Illustrative example

Where it helps

An IT technician needs to drill small pilot holes in aluminum casings for equipment modification.

How this product helps

These SPKLINE cobalt bits, with their 135° split point and heat dissipation properties, are well-suited for drilling aluminum. Using a low speed and cutting lubricant will prevent chip welding and ensure smooth, precise holes for mounting components.

Specifications & installation

Specifications

Base Material	High Speed Steel (HSS)
Cobalt Content	5% M35 Alloy
Key Additives	Cobalt Alloy for heat and abrasion resistance

Installation & usage

Recommended Use	Micro hole drilling in stainless steel, light-gauge metal, high-carbon steel, aluminum, cast iron, hardened steel, PCB boards, plastic, wood.
Drilling Speed	Low speed recommended, especially for aluminum and hard metals.
Lubrication	Use cutting paste or fluid for drilling hard metals and aluminum to reduce friction and heat.
Pressure	Apply light, consistent pressure; let the bit do the work.
Chip Clearing	Pull bit out frequently to clear chips and prevent jamming.
Shank Fitment	Straight 1/4" hex shank fits impact drivers and quick-change chucks.
Safety	Always wear safety goggles and secure workpiece.
Cost per use	10 bits in set — ₹121 per bit
Shelf life after opening

How we compare

Feature	SPKLINE 10 Pcs	Others
Material & Durability	M35 Cobalt HSS with 5% cobalt alloy; heat & abrasion resistant; up to 4x longer life.	Standard HSS or uncoated bits; prone to faster wear and heat damage on hard metals.
Hard Metal Performance	Designed for stainless steel, hardened steel, cast iron; excellent heat dissipation.	May struggle or dull quickly on hardened steel; often require frequent cooling.
Tip Geometry	135° split-point tip for self-centering and reduced walking.	Often 118° standard point; prone to skating on hard surfaces.
Shank Type	1/4" Hex Shank for impact drivers and quick-change chucks.	Varies; some may have round shanks not ideal for impact drivers.
Cost per bit (approx.)	10 bits in set — ₹121 per bit	Local HSS bits: ₹20-50/bit; Cobalt bits: ₹50-150+/bit (varies by size & quality)

SKU	nkc1754
GTIN	0784099651991
Brand	SPKLINE
Set Name	10 Pcs High Speed Steel Cobalt Drill Bit Set
Material	High Speed Steel with 5% Cobalt Alloy (M35)
Shank Type	Straight Shank
Shank Diameter	1/4 inch (3.175 mm)
Tip Point Angle	135-degree Split Point
Flute Type	Spiral
Finish Type	Uncoated
Package Quantity	10 Pieces
Included Sizes (Diameter)	2x 1mm (3/64"), 2x 1.5mm (1/16"), 2x 2mm (5/64"), 2x 2.5mm (3/32"), 2x 3mm (1/8")
Item Weight	15 grams (approx. per bit)
Package Dimensions	13.4 cm x 8.9 cm x 0.9 cm
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 Cobalt Drill Bit Set 1mm-3mm | 135° Split-Point M35 HSS Metal Drill Bits

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