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Drill Harder Metals with Professional Precision
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.
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.
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.
An IT hardware engineer in Bangalore needs to drill precise holes in metal casings for custom repairs.
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.
A metalworking craftsman in Delhi needs reliable bits for drilling stainless steel and hardened components.
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.
| Primary Material | High Speed Steel (HSS) |
| Cobalt Content | 5% |
| Alloy Grade | M35 |
| Free From | No specific claims |
| 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: ₹149 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. |
| 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. |
| Set Contents | 10 pcs, 3.2mm (1/8"), 65mm total length, 35mm working length, straight shank. | Sets vary widely; may include different sizes or shank types. Basic sets might lack cobalt or split points. |
| 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 |
About SPKLINE
SPKLINE specializes in high-performance drill bits and cutting tools, focusing on durability and precision for professional metalworking and industrial applications.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bit Set | M35 High Speed Steel Jobber Length Twist Bits for Hard Metal
1,490
This item
SPKLINE 10 Pcs 3.2mm (1/8") Cobalt Drill Bit Set | M35 High Speed Steel Jobber Length Twist Bits for Hard Metal
1,490
Total price:
4,470
You save 1,710 (28%) Extra3 items selected
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4,470You save 1,710 (28%) Extra
| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 1,490 2,590 | 1,400 1,600 | 1,580 1,990 | 1,700 2,710 | 6,260 7,980 | 4,540 6,770 | 6,630 9,710 |
| Brand Name | SPKLINE | SPKLINE | SPKLINE | MK Morse | Eagle Abrasives | Threadmade | Rubbermaid |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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