Cobalt Drill Bit Set (1/16-1/2 Inch, 17PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

Q: Are these good for make holes in steel material?

Yes，good for drilling steel.Generally, sellers purchase products from the market and sell them on e-commerce platforms. The STROTON drill bits we sell are designed and produced by our factory, including the case, which is unique on the market. This drill bit contains 6% cobalt, which is higher than general products. In addition, STROTON hss drill bits have a secret heat treatment recipe.So They’re good at drilling steel.

Q: Where are these made?

They are made in China. They are very good cobalt drill bits set.It is designed and manufactured by STROTON, different from the similar products in the market.

4.5/5

Product ID: 430998172

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Details

Material
Cobalt
Cutting Diameter
0.5 Inches
Finish Type
Steel
Shank Type
(1/16-7/32:
Cutting Angle String
135 Degrees

🔥68 HRC Hardness

🔩17PCS Set

⚙️5% Cobalt Steel

Frequently Bought Together

STROTON Cobalt Drill Bit Set (1/16-1/2 Inch, 17PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

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Description

🔧 Drill Like a Pro with Cobalt Power!

SPEEDY EFFICIENCY - Capable of running 2-3 times faster than standard bits, saving you time on every project.
UNMATCHED DURABILITY - Crafted from premium 5% cobalt steel for superior heat and wear resistance.
PRECISION ENGINEERING - Ground three times for a razor-sharp cutting edge that slices through materials effortlessly.
VERSATILE PERFORMANCE - Designed to drill through stainless steel, hard metals, plastics, and wood with ease.
COST EFFECTIVE SOLUTION - Lower cost per hole due to longevity and performance, making it a smart investment.

The Cobalt Drill Bit Set includes 17 high-speed steel twist drill bits, ranging from 1/16 to 1/2 inch, made from premium 5% cobalt steel. With a Rockwell hardness of 68 HRC, these bits are engineered for exceptional heat and wear resistance, making them ideal for drilling through tough materials like stainless steel, hard metals, and plastics. The set is designed for efficiency, allowing for faster drilling and a lower cost per hole, ensuring you get the most out of your investment.