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.

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.

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

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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

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

Product ID: 430998172

Details

Cutting Angle String
135 degrees
Cutting Diameter
0.5 inches
Finish Type
Steel
Material
Cobalt
Shank Type
3-flats Round

🔥68 HRC hardness for superior heat resistance

⏱️2-3x faster drilling speed

⚙️5% Cobalt Steel for ultimate durability

₱4301

Duties & taxes included

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Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Drill Like a Pro, Last Like a Legend ⚙️

SECURE STORAGE - High-quality case with tight clamps keeps all 17 bits organized and ready for action.
PRECISION ENGINEERED - 135° split point design delivers clean, burr-free holes every time.
UNMATCHED DURABILITY - Premium M35 cobalt steel ensures long-lasting sharpness and wear resistance.
VERSATILE PERFORMANCE - Effortlessly drills through stainless steel, cast iron, wood, plastic, and more.
SPEED MEETS EFFICIENCY - Run 2-3 times faster than standard bits, reducing your project time significantly.

The STROTON 17-piece Cobalt Drill Bit Set features premium 5% cobalt M35 high-speed steel with a 68 HRC rating, delivering exceptional heat and wear resistance. Designed with a 135° split point, these bits cut through stainless steel, hard metals, plastics, and wood with precision and speed—running 2-3 times faster than conventional bits. The set includes a durable, secure storage case, making it the ultimate choice for professionals and serious DIYers seeking reliability and efficiency.

Specifications

ASIN	B09MRW8399
Best Sellers Rank	#76,831 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #170 in Jobber Drill Bits
Brand Name	STROTON
Customer Reviews	4.6 4.6 out of 5 stars (564)
Cutting Angle String	135 degrees
Cutting Diameter	0.5 inches
Finish Types	Steel
Item Dimensions	7.09 x 5.12 x 1.57 inches
Manufacturer	STROTON Ltd
Material Type	Cobalt
Minimum Bore Diameter	0.06 inches
Model	Cobalt 6 series bits inch 1/16-1/2
Number of Flutes	2
Number of Packs	1
Number of Pieces	17
Part Number	Cobalt 6 series bits inch 1/16-1/2
Point Style	Split Point
Set Name	17-Piece Set
Shank Type	3-flats,Round
Surface Recommendation	Cast Iron,Metal,Plastic,Stainless Steel,Steel,Wood
Tool Flute Type	Straight
UPC	643459994935
Unit Count	1 Count

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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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₱4301

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered 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 Philippines.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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