Can these drill bits cut through hardened steel or stainless steel?

Yes. M35 grade steel with 5% Cobalt is specifically engineered for high-tensile metals like stainless steel, cast iron, and titanium alloys. For fully hardened steel (HRC > 50), carbide bits are recommended.

Will these bits fit my standard cordless drill?

Yes. These feature standard round straight shanks. The largest diameter is 10mm, allowing them to fit securely into any standard 3/8-inch (10mm) or 1/2-inch (13mm) drill chuck.

Do I need to use cutting oil or lubricant?

Highly recommended. While Cobalt is heat-resistant, using cutting fluid significantly reduces friction and heat buildup. This prevents the bit from annealing (softening) and greatly extends its lifespan.

Do these bits require a center punch to start?

No. These bits feature a 135° Split Point tip. This design is self-centering and cuts immediately upon contact with the metal, preventing the bit from "walking" or skating across the surface.

Are these bits just coated with Cobalt or solid?

They are solid M35 Cobalt steel throughout, not just coated. Unlike titanium-coated bits that lose effectiveness once sharpened, these maintain their heat resistance and performance even after resharpening.

19pc Set | Desertcart Antigua and Barbuda

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

EC$280

Duties & taxes included

In stock

Sold byAmazon Antigua and BarbudaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Antigua and Barbuda.

Secure transaction

Description

🔥 Drill Like a Pro, Last Like a Legend ⚙️

PRECISION DRILLING - 135° split point design prevents walking for flawless, self-centering starts every time.
RUGGED ORGANIZATION - Heavy-duty metal case with clear size markings keeps your bits secure and ready on the go.
UNMATCHED DURABILITY - M35 cobalt steel with 5% cobalt delivers up to 12X longer life than standard bits.
COMPLETE METRIC RANGE - 19-piece set covers 1mm to 10mm in 0.5mm increments for every project need.
VERSATILE METAL MASTERY - Effortlessly cuts through stainless steel, cast iron, titanium, and softer materials alike.

The Hymnorq 19-Piece M35 Cobalt Steel Metric Drill Bit Set features premium high-speed steel with 5% cobalt, achieving a Rockwell hardness of 67 for exceptional heat resistance and durability. Its 135° split point design ensures precise, walk-free drilling across a full range of metric sizes from 1mm to 10mm. Housed in a rugged metal case, this set is engineered to tackle tough metals like stainless steel, cast iron, and titanium while maintaining versatility for softer materials, making it the ultimate heavy-duty drill bit collection for professionals and enthusiasts alike.

Specifications

ASIN	B07FXK9VHV
Best Sellers Rank	#31,098 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Metalworking & Multipurpose Drill Sets
Brand Name	HYMNORQ
Customer Reviews	4.3 4.3 out of 5 stars (188)
Cutting Angle String	135 degrees
Cutting Diameter	1 millimeters
Finish Types	Bronze
Included Components	19 piece of metric cobalt drill bits
Item Dimensions	6.02 x 4.17 x 1.69 inches
Item Highlight	135° Split Point Prevents Walking; Cuts Hardened Alloys, Cast Iron & Titanium; 67 Rockwell Hardness; Heavy-Duty Index Case
Item Weight	16 ounces
Manufacturer	Hymnorq
Material Type	Cobalt Steel
Model	43398-50823
Number of Flutes	2
Number of Packs	1
Number of Pieces	19
Part Number	B07FXK9VHV
Point Style	split
Set Name	19pcs(Metal Case)
Shank Type	Straight
Surface Recommendation	Stainless Steel, Brass, Copper, Iron, Aluminum Alloy, Angle Steel, Cast Iron, Wood, Plastic
Tool Flute Type	Spiral
UPC	666389485861
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

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.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

EC$280

Duties & taxes included

In stock

Sold byAmazon Antigua and BarbudaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Antigua and Barbuda.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!