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.

Are cobalt bits better than titanium bits?

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

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.

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.

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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"

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"

Product ID: 454376067

Details

Cutting Angle String
135 Degrees
Cutting Diameter
0.25 inches
Finish Type
Titanium
Material
High Carbon
Shank Type
Straight

🔩135° Split Point - fast, precise penetration

🧰13-piece Set - versatile sizes 1/16" to 1/4"

⚙️M35 Cobalt Alloy - 5% Cobalt for max durability

€ 36.06

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Description

🔧 Drill Like a Pro, Finish Like a Boss!

ORGANIZED PORTABLE - Compact storage case keeps your bits secure and ready for any job, anytime.
UNMATCHED DURABILITY - M35 high-speed steel with 5% cobalt boosts wear resistance for heavy-duty projects.
VERSATILE SIZE RANGE - Complete 13-piece set covers all your drilling needs from delicate plastics to hardened metals.
PRECISION CUTTING EDGE - 135° split point design ensures quick, centered drilling with minimal walking.
EFFORTLESS CHIP REMOVAL - Twist jobber length design clears debris fast, keeping your workflow smooth and efficient.

The GMTOOLS 13Pcs Cobalt Drill Bits Set features premium M35 high-speed steel with 5% cobalt for superior wear resistance. Its 135° split point tip delivers fast, precise drilling with reduced walking, while the twist design ensures efficient chip removal. This versatile set includes 13 sizes from 1/16" to 1/4", perfect for hardened metals, stainless steel, plastics, and wood, all housed in a durable storage case for easy access and organization.

Specifications

ASIN	B0B5R8P9ST
Best Sellers Rank	#8,199 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Jobber Drill Bits
Brand Name	GMTOOLS
Customer Reviews	4.4 4.4 out of 5 stars (748)
Cutting Angle String	135 Degrees degrees
Cutting Diameter	0.25 inches
Finish Types	Titanium
Included Components	1
Manufacturer	GMTOOLS
Material Type	High Carbon Steel
Number of Flutes	2
Number of Pieces	13
Part Number	Cobalt Twist Drill Bit
Point Style	Split Point
Set Name	13Pcs Cobalt Drill Bits Set
Shank Type	Straight
Surface Recommendation	Stainless,Wood,Cast Iron,Plastic,Metal,Steel
Tool Flute Type	Spiral
Unit Count	1 Count

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€ 36.06

Duties & taxes included

In stock

Sold byAmazon GERMANYDelivered 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 GERMANY.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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