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Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Q: Can these drill through a car's trunk without any issues?

These are made to drill through thick hard steel. Thus are very hard and brittle and will break easily if improper angle is applied. For drilling trunk or locks use a titanium bit and buy a few of them as they dull quick but get the job done.

Q: Bought the 19 pc set; 3mm but broke immediately. Can anyone point me to where I can buy replacement? Thank you.

Hi,I am the seller. You need to click the blue word [STROTON] in "Sold by STROTON and Fulfilled by Amazon" below the "Add to Cart" of this Drill bit's listing. Then click [Ask a question] that write the condtion simply to Establish contact channels with me through Amazon message system. Then I can handle the follow-up to your order. Best regards STROTON

Q: Can they drill titanium

Honestly,They are good for drilling steel and do the job well. But Titanium alloy has very high hardness. And We can't guarantee. If it doesn't work well, you could return it. If it works（Lubricant Must Be Used）, you could share it with other customers.

Q: What is the length of these bits?

They are average lengths. The 1mm is 3.4cm and length increase proportionally to the 10mm which is 5.4cm.

Product ID: 442712405

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Details

Material
Cobalt
Cutting Diameter
9.5
Finish Type
Hardened
Shank Type
Straight
Cutting Angle String
135 Degrees

📏19pcs, 1mm-10mm in 0.5mm increments - precision versatility

🔥68-70 HRC Rockwell Hardness - extreme heat & wear resistance

⚙️M42 8% Cobalt Steel - ultra durable

Frequently Bought Together

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size

MACXCOIP Cobalt Drill Bit Set, 115Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box

Description

🔩 Drill Like a Pro, Last Like a Legend

CUT THROUGH TOUGHNESS - Premium M42 cobalt steel delivers unmatched durability and heat resistance for stainless steel and hard metals.
MULTI MATERIAL MASTERY - Engineered to handle stainless steel, hard metals, hardwood, aluminum, and plastics — your all-in-one drilling solution.
SPEED MEETS EFFICIENCY - 3-step split point design starts drilling immediately with less force, reducing walking and boosting productivity.
LONG LASTING PERFORMANCE - 68-70 HRC hardness means superior wear resistance, cutting costs per hole with extended tool life.
PRECISION IN EVERY DRILL - 19-piece set with 0.5mm incremental sizes from 1mm to 10mm ensures exact fit for every project.

The Metric M42 8% Cobalt Twist Drill Bits Set features 19 precision bits ranging from 1mm to 10mm, crafted from premium M42 cobalt steel with 68-70 HRC hardness. Designed with a 3-step split point tip, these bits excel at drilling stainless steel, hard metals, and a variety of other materials with superior heat and wear resistance, delivering faster, cleaner holes and longer tool life.

Specifications

Material	Cobalt
Cutting Diameter	9.5 Millimetres
Finish Type	Hardened
Shank Type	Straight
Cutting Angle String	135 Degrees
Brand	STROTON
Tool Flute Type	twist
Point Style	Split Point
Surface Recommendation	Metal, Plastic, Wood
Number of Flutes	1
UPC	743829466298
Set Name	1-10mm (19PCS)
Net Quantity	1.0 Count
Manufacturer	STROTON Ltd
Number of Pieces	19
Country of Origin	USA
Number of Memory Sticks	1
Item Weight	454 g
Package Dimensions	17.6 x 12.5 x 4.4 cm; 453.59 g
Hand Orientation	Right Hand
Power Source	ac
Included Components	drill bits
Are batteries included?	No

Have a Question? See What Others Asked

Can these drill through a car's trunk without any issues?

Bought the 19 pc set; 3mm but broke immediately. Can anyone point me to where I can buy replacement? Thank you.

Can they drill titanium

What is the length of these bits?

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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€ 234.32

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