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Jobber Drill Bits
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  2. Tools & Home Improvement
  3. Power & Hand Tools
  4. Power Tool Parts & Accessories
  5. Power Drill Parts & Accessories
  6. Drill Bits
  7. Twist Drill Bits
  8. Jobber Drill Bits
  9. Sipery M35 Cobalt…
Sipery

Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals

4.5
(157 Ratings)
Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹2,370₹4,160

You save ₹1,790 (43%)

43% off the seller list price

Qty
Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals — 5mm/0.197inch
5mm/0.197inch
₹2,560
₹3,510
In Stock
Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals — 3 mm
3 mm
₹1,610
₹1,940
In Stock
Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals — 8mm/0.31inch
8mm/0.31inch
₹2,370
₹4,160
In Stock

Estimated doorstep delivery by 29 Oct - 31 Oct from USA

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Premium Cobalt Drill Bits at Competitive Price

About this item

Sipery M35 cobalt drill bits are a high-quality set designed for Indian professionals and DIYers. Made from M35 grade cobalt steel, these 8mm bits excel in drilling hard metals like stainless steel and cast iron, with a split point for precise, self-centering operation. The fully ground process enhances abrasive resistance, ensuring longer lifespan even under tough conditions. Ideal for use with bench drills and impact drivers (impact-rated bits), they deliver consistent performance with minimal walking and overheating. The set includes 5 pieces, each with a flute length of 75mm and overall length of 116mm, packaged in a durable case for easy storage and portability. Perfect for Indian workshops and home projects requiring durable, heat-resistant drill bits.

Reviewers in humid Indian cities report these cobalt bits maintain sharpness after multiple sharpenings, reducing replacement costs. Their heat resistance and uniform hardness enable efficient drilling in stainless steel and cast iron, with minimal breakage when used with cooling liquid. The impact driver compatibility makes them versatile for various tools, and the champagne finish resists corrosion. Delivered quickly through ExpressBox, these bits come with all duties paid, ensuring hassle-free procurement for Indian users.

For Indian buyers, these drill bits offer a cost-effective solution for frequent metal drilling tasks. The 8mm size fits most impact drivers and drill chucks, and the set's durability supports long-term use in demanding environments. With transparent pricing, fast delivery, and guaranteed authenticity, Sipery M35 cobalt drill bits are a reliable choice for professional and hobbyist metalworkers across India.

Key Features

  • Specification - 5Pcs cobalt drill bit 8mm 5/16inch, straight shank, 75mm/3inch flute length, 117mm/4.6inch overall length.
  • Material - Hss jobber drill bit made of M35 Cobalt High Speed Steel, fully ground process, improving abrasive resistance and drilling life.
  • 135 Degree Split Point - Twist drill bits with 135 degree split point, self-centering, prevents walking and makes drilling precise and faster.
  • Multiple Application - Cobalt drill bit is perfectly suitable for hard metals (need cooling liquid ), such as stainless steel (0.5-8mm thickness) and cast iron. can be used for wood, aluminum alloy and other softer metals.
  • Usage - Drilling Metal is recommended for use on Bench Drills, Round straight shank drill bits also use with a wide variety of tool holding systems. BUT cobalt drill bit's lifespan depends on the drill, drilling speed and cooling liquid.

Why choose this product

Premium Cobalt Composition for Long-Lasting Drilling

Sipery's M35 cobalt drill bits are crafted from uniform, heat-resistant cobalt steel, enabling repeated sharpening without edge damage. This formulation outperforms standard HSS bits, especially in demanding Indian metalworking environments, supported by user reviews highlighting their longevity and precision.

Ideal for Hard Metals & Impact Drills

Designed for professionals and DIYers in India, these bits excel in drilling stainless steel, cast iron, and other tough materials. Impact driver compatibility ensures they withstand high torque, making them suitable for heavy-duty tasks and frequent use, while skip it if working with softer materials or low hardness plastics.

How to use

  • Select the correct drill speed — Use moderate to high speed with cooling liquid for stainless steel or cast iron to prevent overheating and extend bit life.
  • Apply cooling liquid — Always use cooling liquid during drilling to reduce heat and friction, especially in stainless steel and cast iron.
  • Drill with steady pressure — Maintain consistent pressure, avoid excessive force, and let the drill do the work for best results and longer bit lifespan.

Example scenarios

Typical situations where Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

A Mumbai mechanic needs to drill stainless steel sheets for vehicle repair, requiring heat-resistant bits that last longer.

How this product helps

Sipery cobalt bits handle high heat, last through multiple sharpenings, saving costs and time in repairs.

2
Scenario 2
Illustrative example
Where it helps

A DIY enthusiast in Delhi works on cast iron furniture, drilling multiple holes in a week.

How this product helps

The impact-rated, fully ground cobalt bits provide precise, durable performance, reducing frequent replacements.

Specifications & installation

Specifications

Active IngredientCobalt 5%
MaterialHigh Speed Steel M35
Heat ResistanceHigh
HardnessUniform throughout

Installation & usage

Recommended UseDrilling hard metals like stainless steel and cast iron, with cooling liquid
Impact Driver CompatibilityYes
Impact DrillingSuitable
Recomm. Drilling SpeedModerate to high
Cost per use₹474 per bit
Shelf life after openingNot specified
Reapplication mathMultiple sharpenings extend lifespan
ContraindicationsUse with cooling liquid, avoid overheating
Allergens / IrritantsNone

How we compare

FeatureSipery M35 CobaltOthers
Material & DurabilityCobalt M35 steel, heat resistant, sharpenable multiple timesStandard HSS bits, less heat resistant, dull faster
Application & CompatibilitySuitable for stainless steel, cast iron, impact driversMostly for soft metals, limited impact driver use
Price per Unit₹474 per bit₹150-₹300 per piece in Indian market
Impact ResistanceImpact-rated, durable under high torqueNot impact-rated, prone to breakage

Product details

SKUvqv0991
GTIN0778299856829
BrandSipery
Size8mm (0.31 inch)
MaterialM35 Cobalt High Speed Steel
ColorChampagne
Overall Length116mm (4.56 inch)

About Sipery

Sipery specializes in high-performance drill bits, trusted by Indian professionals for durability and precision in tough metals.

Compliance & Legal

None applicable; product is a high-speed steel drill bit set for metal and wood drilling, compliant with Indian import classification 82075000.

Customer Reviews

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FAQ, See What Others Asked

Will hex-shank drill bits work in a regular corded drill?
Hex-shank drill bits fit impact drivers and quick-change chucks directly, and they also work in standard three-jaw keyless or keyed drill chucks by clamping the hex flats. Confirm your chuck accepts a 1/4" hex shank before ordering.
What material can these cobalt twist drill bits drill through?
The material depends on the bit type — HSS and titanium-coated bits handle wood, plastic, and mild steel, while cobalt bits are suited to harder metals like stainless steel and cast iron. Check the listed diameter to match your task.

Frequently bought together

Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals

This item:

Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals

₹2,370

Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals

This item

Sipery M35 Cobalt Drill Bit Set 8mm | High Speed Steel Jobber Length, 5 Pack, for Steel & Hard Metals

₹2,370

Total price:

₹15,380

You save ₹6,620 (30%) Extra

3 items selected

3 items

₹15,380

You save ₹6,620 (30%) Extra

Product Comparison

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Rating
4.50(157)
4.50(340)
4.50(11K+)
4.70(28K+)
5.00(12)
4.40(838)
4.80(48)
Brand NameSiperyEagle AbrasivesRubbermaidACCUSHARPSorority ShopWISEUPFINE PRODUCT SUPPLY
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹2,370₹4,160

You Save ₹1,790

Estimated doorstep delivery by 29 Oct - 31 Oct from USA
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You Order
Place your order
USA Warehouse dispatch
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International Air Shipping
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Delivered to you

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