Best Cobalt Drill Bits For Hardened Steel

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Pop Expert

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Pop Expert have put together this list of the top 10 selling Cobalt Drill Bits For Hardened Steel on Amazon – sorted by overall popularity and positive consumer reviews.

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Popular Cobalt Drill Bits For Hardened Steel on Amazon

Details on the Best Cobalt Drill Bits For Hardened Steel

Bestseller No. 1
BOSCH 14-Piece Cobalt M42 Metal Drill Bit Set for Drilling Stainless Steel, Cast Iron, Titanium, Light Metal
  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
Bestseller No. 2
ROGAPER Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastics, with Metal Index Storage Box, 1/16" - 1/2"
  • [Size] 29-piece drill bits for daily use: 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 inch bits.
  • [M35 Cobalt High Speed Steel] Industry grade M35 drill bit with 5% cobalt, and complete grinding to achieve precise drilling diameter can improve wear resistance and durability, which is much harder than high speed steel used in other similar drill bit groups.
  • [135° Split Point] The 135° quick cut split point with straight shank is self centering to penetrate metal quickly with less pressure and prevents bit "walking." Easily cuts without the need for a center punch, thus in faster drilling performance.
  • [Multiple Applications] Ideal for cutting hard metals such as stainless steel, steel, sheet metal and cast iron as well as plastics, aluminum alloys, wood and other softer metals. Pay attention to speed, pressure and heat control when drilling.
  • [90 Day Warranty] Comes in a metal storage case for easy storage. If you are not completely satisfied for any reason, please feel free to contact us and we will give you our most sincere response.
Bestseller No. 3
GMTOOLS 15Pcs Cobalt Drill Bit Set, M35 HSS, 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood, with Indexed Storage Case 1/16"-3/8"
  • High Quailty Material: Manufactured from Industry grade M35 High Speed Steel with 5% Cobalt added, usually giving better Heat, Wear and Chip Resistance and Long Tool Life.
  • 135° Split Point: The 135° fast cutting point is automatically centered and prevents walking, clears chips and particles faster. Making drilling precise, reducing friction and heat for a smooth chip movement.
  • Professional Drill Bits: gold oxide finish and round straight shanks, fully ground spiral groove design with high grinding accuracy, for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals.
  • Set includes: 15pcs jobber length drill bit set with plastic storage case, includes 1/16" 2pc, 5/64" 1pc, 3/32" 2pc, 7/64" 1pc, 1/8" 2pc, 9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc.
  • QUALITY COMMITMENT: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!
Bestseller No. 4
DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
1,970 Reviews
DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
  • Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams
  • Patented bit-bar design allows easy removal of drill bits and customizable placement
  • DEWALT drill bit set comes with clear lid allowing you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase+ (sold separately) - Ideal for organizing loose bits
Bestseller No. 5
IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)
  • 29 Piece
  • Cobalt Alloy Steel Drill Bit Set
  • Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk
  • 5% Cobalt Alloy Steel For Higher Heat & Abrasion Resistance
  • Heavy Duty Web Construction For Strength & Durability

Newest Cobalt Drill Bits For Hardened Steel

Twist Drill Bits, High Speed Steel Drill Bit, Reduced Shank Twist Drill Bits - 1/2 Inch Shank - 21.5mm/0.85in - for, Reduced Shank Drill Bits
  • High Cutting Precision: The knife edge is polished with fine craftsmanship, which can meet different cutting precisions and has high work efficiency.
  • 118° Acute Angle: Professional 118° acute angle design, fast and accurate drilling, time-saving and labor-saving, suitable for metal metal processing. Spiral chip removal design makes chip removal smooth.
  • Size: The diameter of the blade is about 21.5 mm/0.85 inches, the diameter of the handle is 12.7 mm/0.50 inches, and the total length of the drill bit is about 150 mm/5.91 inches.
  • Suitable For Various Metal Materials: Suitable for iron, aluminum, copper, stainless steel, high-speed steel, manganese steel, various hardened steel parts.
  • Excellent Material: The drill is made of high-speed steel material, with high hardness, stable performance, firmness and practicality.
Step Drill Hole Cutter, Highspeed Steel Spiral Step Drill Bit Accurate Positioning 118 ° X Shaped Opening Design M35 High Speed, Step Drill Bits
  • Precise Positioning Function: It adopts 118°X-shaped opening design, which makes the positioning more precise, effectively reduces the slip of the drill bit, and is more convenient to use.
  • Application Range: This spiral step drill bit is suitable for drilling 2mm thin iron (hardness within 25 degrees), 2mm copper or aluminum, 5mm wood or plastic plates.
  • Specifications: The diameter of the handle of the spiral step drill is approximately. 6.35 mm/0.3 inch, drillable diameter (mm): 4mm, 6mm, 8mm, 10mm, 12mm.
  • Material: It uses strong M35 high-speed steel material, and adds 5% cobalt to form a hardened heat-resistant alloy, which has faster cutting speed and longer service life.
  • Hexagonal Shank Design: This drill bit adopts a hexagonal shank design, which is not easy to slip off, and is more robust and durable. You can use it with confidence.
CHENJIN 15PCS High Speed Steel Drill Bit Set 1/8 Cobalt Fully Ground Twist Drill Bits for Hardened Metals Stainless Steel Cast Iron Woodworking Plastics Soft Materials Cordless Drills Hand Drills
  • Package contains 15 pcs 1/8 inch cobalt drill bits, sufficient quantity to meet your various needs; Please pay attention to speed, pressure and heat control when drilling holes
  • Cobalt metal drills for hardened steel feature a 135¡ã split-point tip and torsion design for increased cutting speeds with self-centering capabilities; they prevent walking during the work process while removing chips and particles faster and easier
  • 1/8-inch twist drill bits have a precise diameter; M35 cobalt bits are used for hardened metals and do not break or wear easily, making them suitable for lithium, hand, and impact drills; small size, use with care
  • M35 HSS cobalt drill set is ideal for hardened materials and hard metals such as cast iron, high temperature alloys, hard plastics, stainless steel, titanium alloys, wood, etc., and is also suitable for soft materials
  • High-quality material: cobalt drill set is made of cobalt M35 high-speed steel, this material is durable, strong and practical, long service life, heat-resistant and abrasion-resistant; the cutting edge of the drill bit is quenched and honed to cut accurately without wobbling
EVTSCan 25Pcs Cobalt Drill Bit Set for Stainless Steel Iron, Wood and Plastics Quick Chip Removal Drill Bit Set with Metal Index Storage Box
  • Premium Cobalt Steel Construction: Crafted from high-quality cobalt high-speed steel, this drill bit set offers exceptional heat resistance and toughness, effortlessly cutting through stainless steel, iron, wood, and plastics with ease.
  • Enhanced Durability: Achieve superior wear resistance and hardness with the high temperature quenching process undergone by these drill bits, ensuring long-lasting performance and durability even under heavy use.
  • Efficient Chip Removal: Benefit from the double back angle blade opening design, which enhances the sharpness and speed of the drill bits, improving chip evacuation and drilling efficiency for smoother, faster drilling operations.
  • Rust Resistance: Subjected to a rigorous 24-hour salt spray test, these drill bits exhibit outstanding resistance to rust, maintaining their durability and superior performance over extended periods of use.
  • Secure Fit and Compatibility: The high concentricity straight shank design ensures a secure fit and prevents looseness, providing stability and reliability during heavy-duty applications or accidental impacts. Compatible with a wide range of chuck types, these twist drill bits can be used with handheld drills, cordless drills, impact drills, bench drills, magnetic drills, and more, catering to various drilling needs.
M35 Cobalt Metric Drill Bit Set, 135-Degree Metric Step Drill Bit, 1mm-10mm, 3 Steps Design Tip for Better Drilling Mental, Ideal for Stainless Steel and Hardwood,19PCS
  • Superior Material: This drill bits set is made of premium cobalt. Holds up better than generic high-speed steel, cobalt gives high-speed steel more heat and wear resistance.
  • 3 Steps Design Tip: The 3 steps design makes it accurately centered for woodworking jobs that require precision drilling. Ideal for stainless steel and hard metal, aluminum, copper, plastic and hardwood.
  • Sharp Enough: The sharp edge of these step drill bits allow for efficient cutting of metal materials, resulting in long strips of iron chips instead of slow grinding with a dull drill bit.
  • Complete Twist Drill Bits Set: This metric drill bit set includes 19 drill bits with a 135-degree split point design, providing versatility for various usage scenarios.
  • Wide Compatibility: These metric drill bits can be utilized with a range of drilling equipment, including manual handheld drilling rigs, electric handheld drilling rigs, drilling machines, milling machines, and machining centers.