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13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"

13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"

Q: These work pretty well as a general bit set for drilling most metals? Is applying oil generally needed on a surface when drilling?

While in trade school many decades ago, they taught us to use cooling for chisels and drill bits, I did dry drilling many times throughout the years, it works; however, cooling will extend the life of the drill bit for sure. One online resource said the following: If you don't cool, the material will harden and the drilling will get tougher. With special cutting oil, you cool both the material and the drill. This makes the drilling faster and more effective. The drill bits also last longer, because they stay sharp. Hope that this answers your question.

Q: Are cobalt bits better than titanium bits?

Yes. Cobalt is harder and can drill through harder materials such as stainless steel.

Q: Is the entire bit comprised of the M35 5% cobalt alloy or is the high cobalt steel just on the surfaces?

The entire bit is comprised of the M35 5% cobalt alloy. That is why they should last longer.

Q: Will this fit in a standard household drill?

Our goal is to provide our customers with the highest quality and service. Yes this M35 HSS Drill Bit will fit just be mindful that this is a straight shank bit.

Product ID: 625642623

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Details

Material
High Carbon
Cutting diameter
0.25 Inches
Finish type
High Speed
Shank type
Straight
Cutting angle string
135 Degrees

🎯135° split point for precise, no-walk drilling

🧰13-piece set from 1/16" to 1/4" in sturdy case

⚙️M35 HSS with 5% Cobalt for extreme durability

Frequently Bought Together

GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"

Narwhal 1/8 Inch Cobalt Drill Bits (13 Pack - Industrial Grade M35 Cobalt) 2-3/4" Length & 135 Degree Split Point for Drilling Into Metal, Hardened & Stainless Steel, Cast Iron, & More!

BECOLLO 5/32 Inch Cobalt Drill Bit Set, M35 Jobber Length Twist Drill Bits,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,10 Pieces

Description

🔩 Drill Like a Pro, Finish Like a Boss!

ORGANIZED PORTABLE - Compact storage case keeps your bits secure and ready for any job, anywhere.
UNMATCHED DURABILITY - M35 cobalt alloy boosts wear resistance for long-lasting performance on hardened metals.
VERSATILE SIZE RANGE - Complete 13-piece set covers all your drilling needs from delicate plastics to tough stainless steel.
PRECISION ENGINEERING - 135° split point tip ensures fast, centered penetration with minimal walking—perfect for professional results.
EFFORTLESS CHIP REMOVAL - Twist design clears debris quickly, keeping your workflow smooth and efficient.

This 13-piece M35 cobalt high-speed steel drill bit set features a 135° split point for precision and reduced walking, ideal for drilling hardened metals, cast iron, stainless steel, plastics, and wood. With sizes ranging from 1/16" to 1/4", it comes in a durable storage case, combining professional-grade materials and design for reliable, long-lasting performance.

Specifications

Manufacturer	GMTOOLS
Part number	Cobalt Twist Drill Bit
Item Weight	141 g
Package Dimensions	11.81 x 8.99 x 2.59 cm; 141 g
Manufacturer reference	Cobalt Twist Drill Bit
Size	13Pcs
Style	13 pcs Cobalt
Finish	High Speed Steel,Stainless Steel,Steel
Material	High Carbon Steel
Number of Pieces	13
Tool tip description	Split Point
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

These work pretty well as a general bit set for drilling most metals? Is applying oil generally needed on a surface when drilling?

Are cobalt bits better than titanium bits?

Is the entire bit comprised of the M35 5% cobalt alloy or is the high cobalt steel just on the surfaces?

Will this fit in a standard household drill?

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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RM198

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TrustScore 4.5 | 7,300+ reviews