Best Cobalt Drill Bits For Hardened Steel In November 2024

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With the number of alternatives available on the market, getting the right one could sometimes be a difficult task.. That’s why our platform is dedicated to product testing and coming up with this list of top 10 Best Cobalt Drill Bits For Hardened Steel. Having done thorough research on this topic, we hope that our list will help you find the one you need!

To help you in your search, we have completed this list of the Best Cobalt Drill Bits For Hardened Steel.

Top Rated Best Cobalt Drill Bits For Hardened Steel Of 2024

Rank	Product Name	Score
1	amoolo Cobalt Drill Bit Set (13 pcs), M35 HSS Metal Drill Bits Buy Now	9.7 Buy Now
2	COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length Buy Now	9.5 Buy Now
3	Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Buy Now	9.1 Buy Now
4	Best Choice 8-Piece 1/2” Shank Silver and Deming Drill Bit Set in Aluminum Buy Now	8.8 Buy Now
5	DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240) Buy Now	8.6 Buy Now
6	CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set Buy Now	8.3 Buy Now
7	Hymnorq Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Buy Now	8.1 Buy Now
8	Solid Carbide Drill Bit for Hardened Steel Hard ness HRa 91.3 AEROSPACE STANDARD Buy Now	7.8 Buy Now
9	High Speed Steel Drill Bit for Professional Duty – 7 pcs German Steel Buy Now	7.5 Buy Now
10	Drill Hog USA 13 Pc COBALT Drill Bit Set Index M42 Drill Bits Buy Now	7.2 Buy Now

1. amoolo Cobalt Drill Bit Set (13 pcs), M35 HSS Metal Drill Bits

• Fully ground process & 135 split pointfully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135 split point with straight shank prevents walking and makes drilling precise and faster. no center punch is needed.
• M35 cobalt high speed steelindustry grade 6542 high speed steel drill bit set, harder than 4241 hss used in other similar drill bits set. these drill bits also contain 5% cobalt, which increases wear-resistance and durability.
• Combo set of 13 sizes13 most commonly-used 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") to satisfy all your needs. this drill bits set fits the majority of power drill currently on the market and come with a portable plastic bag for easy storage and organization.
• Multiple applicationperfectly suitable for cutting hard metal such as stainless steel, steel and cast iron as well as wood, aluminum alloy and other softer metals. not for glass or ceramic materials. not for high carbon steel and heat-treated steel. pay attention to speed, pressure and heat control during drilling.
• 90 days warrantyif you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

2. COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length

• Size included: 15pcs jobber length drill bit set with plastic storage case including sizes: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.
• 100% satisfaction guarantee: if you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us.
• Professional & widely use: m35 cobalt hss is more suitable for hardened material. particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
• Twist design & performance: precise 135split point, gold oxide finish and round straight shanks. prevent walking, clear chips and particles faster.produced by precision fully ground which ensures chips move smoothly.
• High quality material: 5% cobalt high speed steel m35 provide extended tool life compared to ordinary drill bits. durable and strong

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

• 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 .
• 3 steps desigh for cutting through stainless steel,hard metals,aluminum,plastic.
• Premium m42 8% cobalt steel ,68-70 hrc (rockwell hardness scale) ,usually give the best heat,wear and chip resistance and long tool life.
• 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.
• 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.

4. Best Choice 8-Piece 1/2” Shank Silver and Deming Drill Bit Set in Aluminum

• Set includes 8 pieces 6 long silver & deming drill bits in a heavy duty aluminum storage case for easy carrying and organization: 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1
• Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish
• 135 split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling
• 1/2 inch reduced shank with tri-flatted end locks onto 3-jaw power tools chuck more securely and eliminates slips
• Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, stainless, sheet metals and many other types of materials

5. DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

• No bit walking - more user control
• Designed for maximum speed and life
• Intended to be used on hard metals
• Pilot point and split tip design

6. CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set

• Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
• Please mark the spot that you are to drill for easier drilling and improved drill bits life.
• All the bits come in a well-organized case for easy transport and storage.
• Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
• Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).

7. Hymnorq Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight

• 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.
• 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.
• 50pc set - the set includes 50pcs of metric m35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm. 10 each metric drills in popular hobbyist sizes at low price. manufactured to german din338 standard. packed in a plastic bag. these bits are quite small. please refer to the picture including a size chart.
• M35 cobalt steel - manufactured from m35 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.
• Point angle - the 3mm bits are 135 split pointed, which is self-centering and will penetrate quickly with less pressure. will not "walk" or "wander". the other small ones are 118.

8. Solid Carbide Drill Bit for Hardened Steel Hard ness HRa 91.3 AEROSPACE STANDARD

• Optimal design for metal work 118 four facet point angle minimizes drill wander and assures accurately sized holes. our jobber length, precision ground carbide drills are designed for high feed rates with good chip disposal. smooth finish on the bits increases chip flow. spiral flutes are constructed with a higher flute angle to remove chips more easily.
• Recommended for use on aircraft metals chrome titanium inconel stainless steel alloys steel low-medium-high carbon steel aluminum copper glass plastics composite materials cast iron -- our carbide drills stay sharp many times longer than traditional steel bits making them ideal for the toughest of applications!
• Specs flute length: 1-3/8 inch, overall length: 2-1/2 inch, drill size: 5/32 inch // tungsten carbide grade (iso): k20 // binder: %8 cobalt // hardness: 91.3 hra // uncoated
• Tungsten carbide is a composite material, although it looks like a metal, it is a composite of tungsten carbide powder mixed with cobalt as a binder metal, the resulting material is more like a ceramic than a metal. it is a very hard material being a 9 on the mohs scale where diamond is a 10 and hard steel around 5. it will chew down into most anything but the hardness ...
• Premium bright finish multi-purpose solid carbide drill bits provide better rigidity than high speed steel bits. it is extremely heat resistant and used for high speed applications. our tungsten carbide (wc) bits has the advantage of cutting metal either "wet" or "dry" and they provide solutions for many businesses such as aerospace drilling jobs for aircraft mechani...

9. High Speed Steel Drill Bit for Professional Duty – 7 pcs German Steel

• Universal. perfect for drilling hardened steel, cast iron, carbon, alloys, cast iron, plastic and other materials. drill bits sizes are carefully selected to meet the needs of the most demanding professionals in all cases.
• Perfect performance. drill bits scored 63,5 in rockwell scale, what ensures maximum durability with lowest fragility in the class of professional drill bits. each drill bit has 135 degree split-point which ensures precise drilling start and perfect accuracy.
• Enhanced durability. up to 25 times more durable than regular hss drill bit. proffis set is the best choice for professional/ industrial use and advanced specialists.
• Made in europe. made of m2 hss (with at least 5% tungsten) produced exclusively from three vendors: erasteel (france), beulmann (germany), boehler international (austria). each drill bit is manually inspected by quality experts to ensure superior quality.

10. Drill Hog USA 13 Pc COBALT Drill Bit Set Index M42 Drill Bits

• Solid cobalt m42 steel
• 1/16" - 1/4" by 1/64ths (13 drills)
• 135 degree split point prevents the bit from "walking"
• Made by drill hog usa
• Lifetime warranty