The 11 Best Long Cobalt Drill Bits (2022 reviews)

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Are you looking for collection of best long cobalt drill bits ? You have landed on the right page.

Our review process:

Our Top Picks:

Best Overall:
Buy: Irwin Tools Long Cobalt Drill Bit
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Best For Precision Work:
Buy: Bosch Long Cobalt Drill Bit
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Best For High Carbon Steel:
Buy: Drill Hulk Long Cobalt Drill Bit
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Best For Overall Length:
Buy: Drill America Long Cobalt Drill Bit
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Best For Size Range:
Buy: Bosch Good Set
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Best For Extensive Set:
Buy: Stroton Long Cobalt Drill Bit
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Best For Brass:
Buy: Amoolo Long Cobalt Drill Bit
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Best For Easy Storage:
Buy: Hymnorq Long Cobalt Drill Bit
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Best For Worth The Money:
Buy: Mudder Long Cobalt Drill Bit
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Best For Fast Drilling:
Buy: Max-Craft Drill Bit
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Best For High Quality:
Buy: Max-Craft Long Cobalt Drill Bit
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Best Overall: Irwin Tools Long Cobalt Drill Bit

Irwin Tools Long Cobalt Drill Bit
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The Irwin tools long cobalt drill bit is capable of outshining several other bits featured in this list in overall features. The Irwin tool long cobalt drill bit is used for overall length and it is simple. Make sure this fits by entering your model number. In addition, it works for popular sizes, is designed to be worth every penny and it is pretty good.

The bit is perfect for a good deal and it is very durable. Most importantly, the Irwin Tools Long Cobalt Drill Bit is made from industrial grade high-speed steel for increased durability.

Most customers found that the bit is great with 303 stainless steel. Also, a few also found that the bit is great for drilling into stainless. To sum up, for most customers, the bit was most suitable.

Why We Like This:
  • New and hot releases.
  • Lot of satisfied buyers.

Best For Precision Work: Bosch Long Cobalt Drill Bit

Bosch Long Cobalt Drill Bit
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The Bosch Long Cobalt Drill Bit should be able to handle its purpose and duties with ease. The bosch long cobalt drill bit cut well is very good, it has split point and has a better design. Make sure this fits by entering your model number. In addition, the bit has enhanced m42 alloy material, It is highly recommended and has a nice design.

Above all, the bosch long cobalt drill bit is designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.

Most buyers opine that the bit is suitable for hardened material. Moreover, they strongly agree that the bit works with bits that have an sds. Moreover, a few say that the bit is the type of lathe you'll be drilling through, the carbide drill will not drill wood very well. In conclusion, many buyers have used the bosch long cobalt drill bit for more than a few months without any issues, and it shows no sign of giving up.

Top Customer Quotes:
  • The co14b drill bit will fit into a 3 jaw chuck drill driver.
  • This is great for drilling out exhaust flange studs.
  • This is a good set of drill bits for stainless steel.
  • This allows for good clean cutting and it is pleasantly surprising.

Best For High Carbon Steel: Drill Hulk Long Cobalt Drill Bit

Drill Hulk Long Cobalt Drill Bit
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Best part: Drill Hulk Long Cobalt Drill Bit costs comparatively low and it is available to ship in 24 hours. The drill hulk long cobalt drill bit comes with great bits and it is very good. Make sure this fits by entering your model number. Further, it has nice bits and it is used for overall length.

The bit fits most common drill chucks. Finally, the drill hulk long cobalt drill bit is used for drilling in hard metal, including stainless steel.

One customer says - "Wow this drill bit saved my life. ". Most customers found that the bit is best for exhaust bolts.

Why We Like This:
  • This is made from high speed steel and 5% cobalt.
  • This improves heat resistance and red hardness.
  • This buy again and it is designed for center punch.
  • This makes for a great case and it is made from high-speed steel.

Best For Overall Length: Drill America Long Cobalt Drill Bit

Drill America Long Cobalt Drill Bit
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The drill American long cobalt drill bit should be able to handle its purpose and duties with ease. The drill American long cobalt drill bit does the job, has a split point tip and it worked fine. Make sure this fits by entering your model number. Also, it works for soft wood and it is good for non-ferrous metals.

Lastly, the drill American longcobalt drill bit is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.

Most customers quickly discovered that the bit makes quick work on steel and stays sharp longer than other bits. Further, they strongly agree that the bit will clog, bind and break. And, a few say that the bit is only 6 inches, you 'll need some material to hold in the chuck. To sum up, the tone of buyers is very positive and we believe that the bit suits the purpose.

Top Customer Quotes:
  • Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium.
  • The 135° split point tip prevents the drill from walking.
  • 12" overall length for drilling where extra length for reach is required.
  • This is uncoated, is good for overall length and it has split points.

Best For Size Range: Bosch Good Set

Bosch Good Set
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Bosch has been making great bit for years, thanks to a combination of clever design and appropriate materials. The Bosch Good Set makes for very nice bits, It allows for a nice set of bits and has a twist design. Make sure this fits by entering your model number. The impact bits provide effective material removal thanks to the long flute design.

The bit is perfect for great quality, it allows for very good bits and has a round shank design. And, the bit is brand new, it worked fine and has a magic design. Most importantly, the bosch good set is great for a fair price, is coated with titanium nitride coating, It is easy to use and has a great design.

Almost all customers agree that the bits are replacements and "add to" a makita set. And, they say that the bit comes in plastic retail clamshell packaging. And, they also found that this set has that size plus the next two sizes up. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This can be used in a regular drill.
  • The ti9im drill bit works with any 3 jawed chuck drill driver.
  • Accuracy: These impact bits feature engineered no-skate tips for more accurate starts.
  • This will go through them like butter.

Best For Extensive Set: Stroton Long Cobalt Drill Bit

Stroton Long Cobalt Drill Bit
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The Stroton Long Cobalt Drill Bit's superior materials makes sure that it ages well with use. The Stroton long cobalt drill bit is inexpensive, is professional, it is built with great customer service and has a nice design. Make sure this fits by entering your model number. This cobaltdrill bit is typically capable of running three to five times faster.

The bit is designed to worth every penny, making for a great buy, It is pretty good and has a better design. And, this is pleasantly surprised, it is best for a good set of drills and has a split point design. Most importantly, the stroton long cobalt drill bit comes with great bits, is great for superior quality, It is constructed with 1/16 inch and has a magic design.

Most buyers agree that the bit has a high % of cobalt and is cut well. And, a few say that the bit can be used on stainless steel. Moreover, a few strongly agree that the stepped tip on this bit drilled a hole deep enough that a screwout tip could bite on. it. Overall, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This bit set is great and definitely the most affordable out there.
  • This is used to drill various sizes through 3/8” thick mild steel.
  • This comes with a warranty card.
  • This would make a set in sae (inch) dimensions also.

Best For Brass: Amoolo Long Cobalt Drill Bit

Amoolo Long Cobalt Drill Bit
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Amoolo line of bits comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Amoolo Long Cobalt Drill Bit is designed for soft metals, is good for good quality bits, It is efficient and has a nice design. Make sure this fits by entering your model number. This drillbit contains 5 % cobalt ( m35 cobalt hss ), which increases the strength, the tool life and makes it more heat - resistant.

The bit does the job, It is designed for center punch and has an excellent design. Moreover, it is easy to open and it started with a 1/8 pilot. Finally, the amoolo long cobalt drill bit is pleasantly surprised, It is very good and has a better design.

Almost all buyers opine that the bit comes in an ingenious case which can be accessed quickly and closed securely so no bits fall out. In addition, they also found that the bit comes in a convenient, labeled case too. Also, they strongly agree that the bit is made of stainless steel and cast iron. To sum up, the tone of buyers is very positive and we believe that the bit suits the purpose.

Top Customer Quotes:
  • This is used for this same bus conversion project.
  • This improves heat-resistance, toughness and durability.
  • This will work, but you must take your time and get it centered.
  • This works well so far to add to that, are well worth the money.

Best For Easy Storage: Hymnorq Long Cobalt Drill Bit

Hymnorq Long Cobalt Drill Bit
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We would, of course, be remiss if we didn't mention Hymnorq Long Cobalt Drill Bit for regular usage. The hymnorq long cobalt drill bit is manufactured to the German din338 standard. Manufacturer says: We've summed up some tips for drilling metals, including a rpm chart for several common metals, based on our reviews and some articles on the internet. Moreover, it comes with great bits and it is great for using water.

The bit much faster, lasts forever and it is very good. Also, the bit is used for softer materials like copper and aluminium, too. Lastly, the hymnorq longcobalt drill bit allows for a great product, is designed to be top notch and it makes for a great buy.

Almost all buyers found that the bit is great for 1/4” angle iron, must use cutting oil. In addition, a few strongly agree that the bit is good for cheap drill bits. In addition, a few strongly agree that the first bit chomped perfect holes through a very hard 3/4 of oak. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This is constructed of PVC pipe.
  • It cut well and it packaged well.
  • This is ideal for repeated drilling in metalworking.
  • This is made to last a while and it is highly recommended.

Best For Worth The Money: Mudder Long Cobalt Drill Bit

Mudder Long Cobalt Drill Bit
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The features department is where mudder 's long cobalt drill bit truly manages to shine. The Mudder Long Cobalt Drill Bit is highly recommend, It is used for overall length and has a creative twist design. The package contains 15 pieces of 1/8 inch cobalt drill bits, sufficient quantity to meet your various needs. The cutting edge of the drill bit is hardened and honed, with accurate cutting without shaking.

The bit is small, please pay attention to use. it it it it. Finally, the mudder long cobaltdrill bit is suitable for hardened material and hard metals, such as cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy, woods, etc., also for soft materials.

"Drilled 3 clean holes through 1/4 inch of steel. " - says, one customer. In short, at the price, they believe that they got a steal of a deal with it.

Why We Like This:
  • This is suitable for lithium electric drill, hand electric drill, impact electric drill, etc.
  • Good brand reputation.

Best For Fast Drilling: Max-Craft Drill Bit

Max-Craft Drill Bit
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The Max-Craft Drill Bit should be able to handle its purpose and duties with ease. The max-craft drill bit is used for drilling deep holes in metal, high-carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium. Make sure this fits by entering your model number. The premium material with high hardness and red hardness to enable long drilling life and fast drilling performance.

Lastly, the max-craft drillbit is good for cobalt drill bit dimension and it is great for center punch.

Almost all customers quickly discovered that the bit was a good value, but the first one broke relatively fast. Moreover, a few also found that the bit is great for predrilling pocket holes to avoid splitting and so many other uses. To sum up, the tone of buyers is very positive and we believe that the bit suits the purpose.

Why We Like This:
  • ✔️ cobalt drill bit dimension:5/32"(diameter) x 2"( flute length) x 6"(overall length).
  • This has a split point angle and it has split point.
  • One of the newcomers and featured product.

Best For High Quality: Max-Craft Long Cobalt Drill Bit

Max-Craft Long Cobalt Drill Bit
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If you want nothing but the most convenient bit, then Max-Craft Long Cobalt Drill Bit is the one you should definitely consider, as it manages to bring a lot to the table. The max-craft long cobalt drill bit is good for cobalt drill bit dimension and it has a split point. The gold oxide ember finished surface treatment strongthen the hardness of the drill bit body to ensure a long drilling life and better drilling performance. The premium material with high hardness and red hardness to enable long drilling life and fast drilling performance.

Lastly, the max-craft long cobalt drill bit works very well, has a split point angle and it is used for overall length.

Overall, at the price, they believe that they got a steal of a deal with it.

Why We Like This:
  • ✔️ cobalt drill bit dimension:1/8"(diameter) x 1-5/8"( flute length) x 12"(overall length).
  • Delivers what they promise.