29PCS Cobalt Drill Bits Set

Product Description VALYRIANTOOL is a professional manufacturer and enterprise specializing in various types of drill bits and cutting tools. With over 15 years of development, our main product range has expanded to include metal working drilling tools, stone working drilling tools, wood working drilling tools, screwdriving tools, threading tools, packaging, and tool sets.

What You Need to Know About Cobalt Drill Bits Cobalt drill bits are not made entirely of cobalt, but rather a steel alloy with a certain percentage of cobalt. The M35 grade contains a 5% cobalt alloy. Adding cobalt increases the strength of the steel and makes it more resistant to heat. This is crucial when drilling hard materials because the friction between metal surfaces can generate high temperatures that can damage the material or the drill bit.

Lowest Cost Per Hole Drilled While cobalt bits are more expensive than regular HSS drill bits, they are a worthwhile investment if you frequently drill metals. This is because they tend to have a longer lifespan, allowing you to reduce the cost per hole drilled.

Twist Drill Bit Body Our cobalt drill bits feature a heavy-duty, fully ground body construction. They also have a high flow spiral design, which enables the fastest removal rate, especially for thick materials.

135° Split Point These drill bits are best suited for portable drills. They are specifically designed to reduce drill walking and require less force compared to 118° point drill bits. The self-centering split point allows you to drill directly to the desired size without any pre-drilling.

Straight Shank Our cobalt drill bits can be used on a variety of materials, including cast iron, zinc alloy, 304 stainless steel, low carbon steel, aluminum, copper, and plastic.

Product Offerings: - 10PCS 1/8" Cobalt Drill Bits - 10PCS 3/16" Cobalt Drill Bits - 10PCS 1/4" Cobalt Drill Bits - 5PCS 5/16" Cobalt Drill Bits - 21PCS 1/16"-3/8" Cobalt Drill Bits Set - 29PCS 1/16"-1/2" Cobalt Drill Bits Set

Customer Reviews: 4.4 out of 5 stars (60)

Price: - 10PCS 1/8" Cobalt Drill Bits: $8.89 - 10PCS 3/16" Cobalt Drill Bits: $8.89 - 10PCS 1/4" Cobalt Drill Bits: $8.89 - 5PCS 5/16" Cobalt Drill Bits: $20.89 - 21PCS 1/16"-3/8" Cobalt Drill Bits Set: $19.89 - 29PCS 1/16"-1/2" Cobalt Drill Bits Set: $32.99

Diameter: - 1/8" - 3/16" - 1/4" - 5/16" - 1/16"-3/8" - 1/16"-1/2"

Quantity: - 10PCS - 10PCS - 10PCS - 5PCS - 21PCS - 29PCS

The 29PCS 1/16"-1/2" Cobalt Drill Bits Set includes the following sizes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", and 1/2" metal drill bits. These drill bits are compatible with the majority of power drills currently available on the market.

Features: - M35 Cobalt High-Speed Steel: Our drill bits are made from industry-grade M35 high-speed steel, which is harder than the 4241 HSS used in other similar drill bit sets. Additionally, our drill bits contain 5% cobalt, which enhances wear-resistance and durability. - Fully Ground Process & 135° Split Point: The fully ground spiral groove design clears particles quickly, reduces friction, and dissipates heat for faster and cooler drilling performance. The 135° split point with straight shank prevents walking and ensures precise and fast drilling without the need for a center punch. - Multiple Applications: Our drill bits are perfectly suited for cutting through hard metals such as stainless steel, steel, sheet metal, and cast iron. They can also be used on plastic, aluminum alloy, wood, and other softer metals. It is important to control speed, pressure, and heat during the drilling process. - 90 Days Warranty: We offer a 90-day warranty. If you are not fully satisfied for any reason, please contact us for a 100% refund or replacement.

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