Top 10 Best Cobalt Drill Bits Made In Usa: Editor Recommended

The 10 Best Cobalt Drill Bits Made In Usa Reviews:

1. Drill Hog USA 1/8″ Cobalt M42 Drill Bits 12 Pack

Drill Hog USA 1/8

Drill Hog is proud to release the newest technology in drill bits.

These bits are made from Premium Solid Cobalt M42 Steel which has a melting point of 2,723° degrees Fahrenheit!

These bits will drill through the toughest steel like truck frames, stainless steel, farm implements, spring steel, grade 8 bolts, and more!

Highlighted Features:

  • 1/8″ Cobalt M42 Jobber Legnth
  • Package of 12 Drills (One Dozen)
  • Tri-Flat Shank Prevents “Slipping” in the Drill Chuck
  • 135 Degree Split Point Prevents “Walking”
  • Drill Hog USA Lifetime Warranty

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2. Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal

Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal

The research shows that HSS with cobalt has a higher temperature resistance and Red hardness, a greater wear resistance(Hardness) and a higher heat treat response than HSS without cobalt .

 

  • Red hardness, it causes the hardened steel to have an ability to maintain hardness at approximately 860-880 ℃.
  • Higher Tempering resistance,it means to maintain a high hardness at high temperatures for an extended period of time.
  • 68-70 HRC,it means that the drill bits has 3X cutting ability and 2X durability.
  • This drill bits set is made of Premium Cobalt (80,000 dollars per ton).

Highlighted Features:

  • Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
  • 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
  • This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
  • The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
  • 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .

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3. Chicago Latrobe 57711 150 Series High-Speed Steel Jobber Length Drill Bit Set with Metal Case

Chicago Latrobe 57711 150 Series High-Speed Steel Jobber Length Drill Bit Set with Metal Case

This Chicago-Latrobe 150 series jobber length drill bit set contains 13 high-speed steel drill bits, including inch sizes 1/16″ through 1/4″ in 1/64″ increments, with a black oxide finish and a 118-degree conventional point for use in general-purpose applications on ferrous materials. High-speed steel (HSS) provides hardness for wear resistance, and the black oxide finish acts as a lubricant to reduce wear while promoting chip and coolant flow. A jobber length drill bit has a versatile midrange drilling depth that is a common choice for general-purpose drilling applications. The round shank accommodates most drill chucks.

The set comes in a gray epoxy-coated steel index case with labeled compartments for identification and organization. Case measures 5-1/2 x 4-1/4 x 11/16 inches (H x W x D). (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.)

Highlighted Features:

  • Set of 13 jobber length drill bits includes inch sizes 1/16″ through 1/4″ in 1/64″ increments
  • High-speed steel (HSS) provides hardness for wear resistance
  • Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material
  • 118-degree conventional point for a range of drilling applications
  • Jobber length drill bit has a midrange drilling depth suitable for general-purpose drilling applications
  • Made in the USA

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4. Champion Cutting Tool Brute Platinum 29 Piece 1/16-1/2″ x 64ths

Champion Cutting Tool Brute Platinum 29 Piece 1/16-1/2

Brute Platinum XL28 mechanics length drill sets are engineered for high performance. The three-flat shank design ensures a positive grip in both keyless and conventional power tools; while the reduced overall length provides added strength and rigidity. The Twister set includes: 1/16-1/2″x64ths bits. An exclusive combination of premium high speed steel, superior geometry and Champion’s unique NOMO (Nitride On Margin Only treatment) maximizes the number of holes per drill. Brute Platinum XL28 drills penetrate faster than cobalt, providing lower fatigue levels to the operator, since less force is required to drill.

Highlighted Features:

  • Drill 3x Longer (than competitors drills), Drill 2x Faster (than cobalt), Drill Accurate (135 deg split point, tapered web geometry)
  • Better than cobalt-XL28 is able to flex when cobalt drills chip or snap.
  • Reduced overall length provides added strength and rigidity. Flatted shanks for fast chucking in keyless power tools.
  • Premium high speed steel and NOMO surface treatment for longer tool life, fast penetration, and flexibility. Self centering 135 degree split point prevents drill from walking.
  • Ultimate workhorse for drilling steel, stainless steel, titanium alloys and other hard to drill materials

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5. Chicago Latrobe 57850 550 Series Cobalt Steel Jobber Length Drill Bit Set

Chicago Latrobe 57850 550 Series Cobalt Steel Jobber Length Drill Bit Set

Greenfield Industries is a leading manufacturer of expendable cutting tools and related products. The company sells thousands of products under the brand names Cleveland, Chicago-Latrobe, Cle-Line, Vermont Tap & Die, Bassett, and Putnam Tools, Geometric, Vers-O-Tool, H & G, and Acme-Fette. The product lines include drills, end mills, taps, dies, reamers, countersinks, counterbores, tool bits, and more. These tools are used in a variety of applications, If it’s being drilled, cut, bored, dug, shaped, milled, stamped, formed, drawn, or threaded, Greenfield Industries products are hard at work. In 2009, Greenfield Industries became part of the Top-Eastern Group, the world’s largest manufacturer of twist drills. The blending of these two powerhouse companies allows both the global capacity necessary to engage in the world’s cutting tool markets. By combining the benefits of world-class manufacturing facilities, experienced sales and technical support, and well-known and respected brand names, Greenfield Industries delivers a winning combination to the market. As our family of customers, distributors, employees, products and services continues to grow, we maintain our commitment to excellence.

Highlighted Features:

  • Set of 29 jobber length drill bits includes inch sizes 1/16″ through 1/2″ in 1/64″ increments
  • Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
  • Gold oxide finish lubricates and provides wear resistance on ferrous materials
  • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
  • Extra thick web for increased strength and rigidity compared to standard drill bits

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6. Hymnorq 3/16 Inch Fractional Size M35 Cobalt Steel Extremely

Hymnorq 3/16 Inch Fractional Size M35 Cobalt Steel Extremely
  • Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant.
  • Cobalt bits are more expensive than ordinary HSS drill bits. But if you regularly drill metals, they are a good investment since they tend to last longer. With an extended life, you can lower the cost per hole drilled.

Highlighted Features:

  • COBALT STEEL – Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • SELF CENTERING – the 135°quick-cut splint point is self-centering and will penetrate quickly with less pressure. Will not “walk” or “wander”
  • FOR STAINLESS STEEL – Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
  • 10PC SET – The set includes 10pcs of 3/16″ diameter M35 grade cobalt steel twist drill bits. Packed in a plastic case for easy storage and carrying. Manufactured to German DIN338 standard.
  • DOWNLOADABLE USER GUIDE – We’ve summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download.

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7. AMOOLO Cobalt Drill Bit Set (1/16″-1/4″,13 Pcs), M35 High Speed Steel Jobber Length

AMOOLO Cobalt Drill Bit Set (1/16'-1/4',13 Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

We have years of OEM experience for international well-known brands. Since 2018, we started to integrate the best of the best industrial manufacturers all over the world and established Amoolo.

Highlighted Features:

  • Made of industry grade 6542 high speed steel, Cobalt twist drill bits are harder than 4241/4341 HSS used in other similar bits, ideal for heavy duty hole drilling. They contain 5% cobalt material, increasing wear-resistance and durability.
  • A complete combo set of 13 jobber length industrial drill bits for metal drilling (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″) . They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.
  •  Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. ✔ 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
  • Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
  • At Amoolo, we center on customer satisfaction. Get your drill bits today along with our 90-day Hassle-Free Warranty Policy, exchange or refund guaranteed for any product defect!

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8. Chicago Latrobe – 69887 1V713 550 Series Cobalt Steel Jobber Length Drill

Chicago Latrobe - 69887 1V713 550 Series Cobalt Steel Jobber Length Drill

Greenfield Industries is a leading manufacturer of expendable cutting tools and related products. The company sells thousands of products under the brand names Cleveland, Chicago-Latrobe, Cle-Line, Vermont Tap & Die, Bassett, and Putnam Tools, Geometric, Vers-O-Tool, H & G, and Acme-Fette. The product lines include drills, end mills, taps, dies, reamers, countersinks, counterbores, tool bits, and more. These tools are used in a variety of applications, If it’s being drilled, cut, bored, dug, shaped, milled, stamped, formed, drawn, or threaded, Greenfield Industries products are hard at work. In 2009, Greenfield Industries became part of the Top-Eastern Group, the world’s largest manufacturer of twist drills. The blending of these two powerhouse companies allows both the global capacity necessary to engage in the world’s cutting tool markets. By combining the benefits of world-class manufacturing facilities, experienced sales and technical support, and well-known and respected brand names, Greenfield Industries delivers a winning combination to the market. As our family of customers, distributors, employees, products and services continues to grow, we maintain our commitment to excellence.

Highlighted Features:

  • Set of 21 jobber length drill bits includes inch sizes 1/16″ through 3/8″ in 1/64″ increments
  • Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
  • Gold oxide finish lubricates and provides wear resistance on ferrous materials
  • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
  • Extra thick web for increased strength and rigidity compared to standard drill bits
  • Made in the USA

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9. Gyros 45-32321 Premium (Made in USA) Industrial Grade Cobalt Drill Bit Set

Gyros 45-32321 Premium (Made in USA) Industrial Grade Cobalt Drill Bit Set

These High-Quality Mini Twist Drills are sharp and precise and are ideal for a variety of jobs. These Wire Gauge Micro Drill Bits can be used with a wide range of hand and motorized tools for a better experience.

GYROS offers a wide selection of different types of handheld tools for all your finishing and precision jobs. Among the tools are Pin vises, hand saws, pliers, needle files, and more.

Highlighted Features:

  • Premium Industrial Grade Cobalt for Maximum speed and life in stainless steel and other hard metals
  • 21 peice Set
  • Sizes 1/16″ – 3/8″ by 64ths
  • 135 degree split point

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10. Snappy Tools Quick-Change 5-Pc. Countersink Drill Bit Set

Snappy Tools Quick-Change 5-Pc. Countersink Drill Bit Set

Quick Change 5 Piece Countersink Drill Bit Set by Snappy. Combination countersink and/or counter bore for standard wood plugs with standard hex shank will fit all power bit quick change chucks. Made of alloy steel & thru hardened with a 82 degree countersink angle. The drill bits are adjustable for different length screws with a 3/8″ or 1/2″ diameter counter bore. Your drill will not slip when using large 1/4″ socket head screws. Made in USA by Snappy.

Highlighted Features:

  • In one step, you can drill, countersink and counter bore the perfect sized hole for #4, #6, #8, #10, or #12 screws.
  • Snappy Tools Countersinks will drill the pilot hole and countersink or counter-bore for screws in one step. Countersink to drive the head of the screw flush with or slightly below the surface
  • Ideal for plugs or dowel buttons. The 1/4″ hex shank can be used with power drills and quick-change chucks.
  • Experience the higher quality of Snappy Tools. Combining higher quality materials and patented technology, Snappy delivers industrial quality tools to the tradesman and do-it-yourself markets at an affordable price.
  • Made in USA by Snappy; Includes 5 Gold Screw Countersinks: 5/64×3/8, 3/32×3/8, 7/64×3/8, 1/8×3/8 & 9/64×1/2

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