Top 10 Best Drill Bit For Cast Iron Reviews In 2023

Are you searching for the best drill bit for cast iron? Confused with too many options? If that is your situation, you have come to the right place. This is your ultimate guide to buying the drill bit for cast iron.

We understand how much of a hassle it can be to go through thousands of reviews when you have too many options. So, leave all your worries, check out this ultimate guide, and make a hassle-free purchase decision.

10 Best drill bit for cast iron Reviews in 2023

1. amoolo Twist Drill Bit 3/8” 5 Pcs, M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron

Features :

  • 【5Pcs 3/8″ Cobalt Drill Bits】5Pcs – 3/8”(Dia 9.26mm) x3-5/8”(Flute Length 92.08 mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
  • 【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.
  • 【Fully Ground Process & 135° Split Point】Fully 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.
  • 【Multiple Application】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.
  • 【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

Additional Info :

Item Dimensions
Weight 0.1

2. MACXCOIP Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1/16″-1/2″

Features :

  • 🔨[Various Sizes] 29 sets of drill bits include 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″, 1/2″, can meet more needs
  • 🔨[M35 Cobalt Drill Bit] The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc
  • 🔨[Quick and Efficient] The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal
  • 🔨[HSS Drill Bit Set] HSS cobalt drill bit set for hardened steel with excellent cutting performance. 29 sets of drill bits for long term use. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling
  • 🔨[Easy Storage] The drill set includes drill holders with size indexes and is packaged in a small, strong package for easy storage and sorting. If you have any questions, please feel free to contact us and we will be happy to help you

Additional Info :

Item Dimensions
Height 4.33
Width 6.3
Length 15.35

3. STROTON Cobalt Drill Bit Set (1/16-1/4 Inch, 13PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

Features :

  • 【Premium True 5% Cobalt Steel with 68 HRC】- The Marked Cobalt Content of Ordinary Drill Bits May be False, but This Drill Bits Set is Made of Cobalt Ore from Our Own Mine, Which Indeed Contains 5% Cobalt. Although the Cost and Price are Slightly Higher, It Usually is able to Provide 3X Heat,Wear and Chip Resistance and 3X Tool Life.
  • 【Split Point Design and Fully Ground Process】- Compared with Other Ordinary Drill Bits, This Drill Bits Set is Particularly Suitable for Heavy Duty Work, Such as Cutting through Stainless Steel,Steel Plate,Iron Sheet, Cast Iron and Hardwood, and Drilling Out Bolts Studs and Screws.
  • 【3X Efficiency + 3X Tool Life】- This Cobalt High Speed Steel Drill Bits Set is Typically Capable of Running 3 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.
  • 【Sharp Drill Bit Edge】- This Kind of Drill Bits Beast Can Even Cut Hardened Metal into Long Iron Bars, While a Dull Drill Bit Can Just Slowly Wear Through Metal.
  • 【13 Pieces Jobber Length Industrial Drill Bits Includes】: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 [DIA 1/64 Inch Increments]

Additional Info :

Item Dimensions
Height 0.69
Width 3
Length 7

4. Lichamp 1/2″ HSS Cobalt Drill Bits 5PCS with Three Flute for Hard Metal, Hardened Stainless Steel and Cast Iron

Features :

  • UNIQUE 3X FLUTE DESIGN – Lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling experience.
  • 4X LIFESPAN MATERIAL – Made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100 degreeF.
  • MULTIPLE APPLICATION – Ideal for drilling in heavy-duty tough metal, including hard abrasive alloy metal, hardened stainless steel or cast iron.
  • SMOOTHLY DRILLING – 135-degree split point tip & twist design increases cutting speed with self-centering and prevents skating starts or walking.
  • 1/2″ COBALT DRILL BIT – Round straight shanks, include 5 pack 1/2-inch diameter hss drill bit with well organized clear ps case.

Additional Info :

Color Gold
Item Dimensions
Weight 0.02

5. BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Features :

  • 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
  • Includes – 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 3/16″, 7/32″, 1/4″, 5/16″, 3/8″, 1/2″

Additional Info :

Item Dimensions
Weight 1

6. 1/4″ Cobalt Drill Bits 10Pcs – BAIDETS M35 1/4 Inch HSS Metal Twist Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron and Other Hard Materials

Features :

  • 【HIGH-QUALITY MATERIALS】1/4″ drill bit set for metal is made of M35 cobalt high speed steel, containing 5% cobalt, which increases wear resistance and durability, and enhances its using efficiency.
  • 【PRECISE AND FAST】135° Quick cut flow point, precise positioning, lower pressure, fast penetration. Equipped with a straight shank to prevent walking, making drilling more precise and fast.
  • 【SPECIAL DESIGN】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance.
  • 【WIDELY USED】Our drill bits set is perfect for drilling various materials, such as stainless steel, copper, cast iron, galvanized pipe, aluminum alloy, wood and other soft metals. NOT suitable for glass, stone or ceramic materials.
  • 【EASY TO USE】10Pcs 1/4″ Cobalt Drill Bits, manufactured according to German DIN338 standard. These drill bits fit the majority of power drills currently on the market and come with a portable plastic case. Perfect for DIY , household maintenance and repair.

Additional Info :

7. Mtsooning 10PCS Twist Drill Bit, 1.2mm/0.05″ Alloy Steel jobber Length, Hex Shank High Speed Twist Tool Suitable for Hard Metal Stainless Steel Cast Iron

Features :

  • Material: Made of alloy steel, it provides a combination of hardness and toughness to improve wear resistance, and undertakes complex drilling tasks in places where accuracy is crucial.
  • Function: All-grinding spiral groove design can quickly remove particles, reduce friction and heat, and thus improve drilling performance.
  • No center punch needed: The 135° fast cutting points is self-centering, and it can quickly penetrate with less pressure.
  • Fitment: The twist drill are very suitable for drilling holes, such as stainless steel, copper, cast iron, galvanized pipe, aluminum alloy, wood and other soft Metals.
  • Easy use and storage: This set of metal twist drill includes 10PCS 1.2mm drills., which is convenient for storage, DIY, home maintenance and repair.

Additional Info :

8. Metric 230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 1mm up to 10mm, Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

Features :

  • PREMIUM MATERIAL: Manufactured from 4241 high speed steel for strength and durability
  • STORAGE: Supplied in a plastic storage box for easy storage and transportation
  • Widely USED: The 135° fast cutting point is automatically centered and penetrates quickly with less pressure,The drill kit meets all your requirements, including all common size specifications for Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass
  • PROCESS TREATMENT: Titanium coated surface prevent rusting,which increase the hardness of the drill bit and reduces heat buildup, make the twist drill bit more wear-resisting for longer life
  • Size Includes: 32 Piece 1mm, 30 Piece 1.5mm, 30 Piece 2mm, 30 Piece 2.5mm, 20 Piece 3mm, 20 Piece 3.5mm , 12 Piece 4mm, 12 Piece 4.5mm, 12 Piece 5mm , 8 Piece 5mm , 4 Piece 6mm, 6 Piece 6.5mm, 4 Piece 7mm, 2 Piece 7.5mm, 3 Piece 8mm, 2 Piece 8.5mm, 1 Piece 9mm, 1 Piece 9.5mm, 1 Piece 10mm

Additional Info :

9. ENERTWIST 21 Pcs Titanium Twist Drill Bit Set,1/16″-1/2″,135 Deg Tip High Speed Steel Drill Bit Kit for Metal/Steel/Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass with Hard Storage

Features :

  • 【Premium Hss Titanum Coating】Bits made from superior Hss material titanium coated for long-lasting strength and durability. Improved flexible holding frame replaces the original direct injection molding on plastic case to avoid bits falling off and mixed after repeated use.
  • 【135 °Split-Point Design】 Self centering 135 degree split point increases cutting speed & reduces bit slip and walking, with premium higher grade HSS material tapered web provides greater durability to reduce breaking.
  • 【 Drill Precise Holes】The cutting edge of each titanium drilll bit is hardened and honed for sharpness. It also features a chatter-free design with staggered cutting teeth to ensure precise countersinking and clean, smooth holes.
  • 【Multipurpose Use】 Ideal for drilling in metal, wood, fiber glass and plastics, Not for use on Concrete or Masonry.
  • 【What you get】21pcs titanium drill bit set include different sizes: 1/16″ x 2, 5/64″ x 2, 3/32″ x 2, 7/64″ x 2, 1/8″ x 2, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″, 5/16″, 3/8″, 1/2″.
  • 【Well Organized】Well Organized – All sizes are indexed on tray to keep all components organized to avoid bits straggling and mixing.

Additional Info :

Item Dimensions
Height 7
Width 2
Length 4.1
Weight 1.0141264052

10. Sabre Tools 3/8 Inch Cobalt Drill Bits – 5pcs Drill Bits for Metal, M35 Cobalt Metal Drill Bit Set, Pilot Point Cobalt Drill Bits – Heavy-Duty Drill Bits for Steel, Hard Metal, Cast Iron (3/8″ x 5″)

Features :

  • What You Get: This drill bit set for metal includes 5 – 3/8 Inch x 5 Inch bits of the same size.
  • A Must in Your Tool Box: This cobalt drill bit set is designed to surpass your expectations in terms of durability and performance, ensuring fast and easy penetration through hard metals.
  • Heavy-Duty Material: Our drill bits for hardened steel feature a heavy-duty construction made with M35 cobalt, which has excellent durability and superior resistance against abrasion and high heat.
  • Pilot Point Tip: These cobalt drill bits feature a pilot point tip that prevents slipping and can help increase drilling speed while ensuring smooth and easy penetration through hard metals.
  • Wide Range of Applications: Our cobalt drill bits for hardened steel are suitable for hard metals, stainless steel, cast iron, steel, titanium alloy, hard plastics and more, and a wide range of applications such as repair, construction, or woodworking.

Additional Info :

Factors You Should Consider Before Buying the drill bit for cast iron

As you already know, research is essential before making any purchase. So, there are some factors you should consider before starting your research. This is important so that you can make your entire buying process as hassle-free as possible.

Remember, your time has as much value as your money. So, there are a few things you should determine which will affect your research as well.

There are a few questions you should ask yourself to determine your course of research on the drill bit for cast iron:

  • Is this drill bit for cast iron serving the purpose of purchase? What are your expectations from the product?
  • What functions must the drill bit for cast iron have? Are there any specific functions that you are seeking in the product?
  • Is there a specific budget, or is the budget flexible?
  • Will the drill bit for cast iron require maintenance and upkeep costs?
  • Are you looking to buy the drill bit for cast iron online or offline? What will be the best places to purchase the product?
  • Where will you seek reliable information on the drill bit for cast iron?

Having multiple options from various brands can get confusing, so ask yourself these questions to narrow down your research.

Once you determine your expectations from the drill bit for cast iron and your price range, you decide which ones you must research. The research will help you determine the pros and cons. But before that, where will you get the reliable information to conduct your research?

Sources for Research

It’s 2023, and your best sources for information and research can be found online. Google drill bit for cast iron and you will find the best selling online marketplaces available. Visit any or each of them to learn about the specifications and prices given on your drill bit for cast iron.

You will be able to find the best deals out of all the options. You can also watch some YouTube videos on the product to see for yourself the functionality of the drill bit for cast iron.

Advantages of Buying Products from Online Sites

Online sites provide a variety of benefits that make your selection and buying process easier. Here are some of the advantages of buying products from online sites:

Best Prices

Reliable online sites give you the benefit of comparing prices and finding the best deals. Platforms like work with manufacturers directly to provide better deals. And the coupons and occasional discounts add to it.

There are no intermediaries in between to make the buying process easy. And the best part? No trouble of going to the shop.


Renowned online sites like Newegg, Amazon, Walmart have branches all over the country. Their transaction and delivery policies are reliable compared to other e-commerce platforms.

Huge Selection

More Variety – the best part about online shopping platforms. These sites give you access to a vast variety of options to choose from.

Suppose you go to Search drill bit for cast iron and up comes options of the product in different prices, brands, and specs. You get to browse these options from the comfort of your home and save time.

You can choose the one that fits your need from your preferred seller. Yes, online platforms even give you the option to choose your seller.


These online sites have numerous customer reviews of the products shown. So, you know which product is authentic and which seller is authorized. And for these facilities provided, they are trustworthy and credible.

Other additional benefits of shopping from online sites would be the facility of easy return and record of the purchase. Online sites are constantly making changes to make shopping easy and hassle-free from the comfort of our homes.

How to Select the drill bit for cast iron

Making your final decision can pose to be a challenge. But worry not. We have a few suggestions to make your selection process easier.

Before that, we would recommend you opt for sites like Amazon, Walmart, Newegg, and Best Buy for your purchase.

So the factors you should consider while selecting your drill bit for cast iron would be:


Hop on to any of these sites and search the options you have shortlisted. Then compare the prices and look for discounts. Don’t forget to factor in shipping charges as well.

Once you get the best favorable deal, you can opt for the drill bit for cast ironto match your need.


Price and brand are somewhat interrelated. Usually, high-end brands charge more. But higher price does not mean a better choice.

So, opt for the brand that meets your need the best.


Factor in the functionality of the product as it is very crucial. Check if the specs meet your need. Consider buying the one that will last in the longer run.

Understand the drill bit for cast iron specs and functionality to determine its use for you.

Customer Reviews

As we mentioned before, online sites usually have a review section. This section is filled with customer feedbacks and even pictures of the product.

Browsing through these reviews is the smartest thing to do. These reviews allow you to comprehend how the product will work for you. You can even determine the pros and cons of these reviews.

Check the rating on the website to learn if the seller is delivering the drill bit for cast iron as expected by the other buyers.

Final Words

All these factors will contribute to choosing your best drill bit for cast iron that meets your expectations. So, use your time efficiently.

And that is all for the ultimate guide to buying the drill bit for cast iron. We hope you can make your purchase confidently. Happy Shopping!

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