Best 10 Best Drill Bit For Cast Iron 2023- Review & Full Buying Guide

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″

Features :

• 13 PIECES INCLUDED: 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″.
• HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance.
• PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.
• 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.
• ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing.

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.
• 3/8″ COBALT DRILL BIT – Round straight shanks, include 5 pack 3/8-inch diameter hss drill bit with well organized clear ps case.

Features :

• 【Drill Bit Set】：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″, 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″. This 29 PCS M35 Cobalt Drill Bit Sets meets all your needs
• 【Cobalt 5% HSS】: High-Speed Steel M35(Cobalt 5%)cobalt drill bit set can effectively drill tough and high tensile materials. The metal drill bit is especially suitable for cutting hard metals, such as stainless steel, cast iron, superalloys, titanium alloys, rigid plastics, and wood, It can also be used in soft materials
• 【Characteristics】: The twist drill bit is 135°split point with a round straight shank, self-centering prevents walking, and makes drilling precise and faster. Double back Angle process and full grinding process is adopted fully ground process twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance
• 【Packaging】: The jobber drill bit set includes a portable bucket that can be hung anywhere or on your waist for easy operation. Whether you’re a professional woodworker, handyman, or builder, or you’re just taking on the occasional housing project as a relaxing hobby, this barrel-packed metal drill bit set has everything you need
• 【After-sales Service】: BeHappy is a specialized tool product, buyers satisfaction is our most sought goal. If you have any doubts about our products, you can contact us, we are happy to help you solve the problem

Features :

• 【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.
• 【Most Commonly-Used 13 Sizes】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.
• 【Precise & Efficient Drilling Performance】✔ 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.
• 【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】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!

Features :

• What You Get: This drill bit set for metal includes 5 – 1/2 Inch x 6 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.
• Split 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.

Features :

• Premium Material: Manufactured from 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 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 3/64″, 30 Piece 1/16″, 30 Piece 5/64″, 30 Piece 3/32″, 20 Piece 1/8″, 20 Piece 9/64″, 12 Piece 5/32″, 12 Piece 11/64″, 12 Piece 3/16″, 8 Piece 7/32″, 4 Piece 15/64″, 6 Piece 1/4″, 4 Piece 9/32″, 2 Piece 19/64″, 3 Piece 5/16″, 2 Piece 21/64″, 1 Piece 23/64″, 1 Piece 3/8″, 1 Piece 1/2″

Features :

• Quality material: the cobalt drill bit set uses cobalt M35 high speed steel as material, this material is durable, strong and practical, with a long service life, heat and abrasion resistance; The cutting edge of drill bit is hardened and honed, with accurate cutting without shaking
• Creative twist design: metal cobalt drills for hardened steel has 135° split point tip and torsional design to improve cutting speed with self-centering ability; They can avoid walking during work process, while clearing chips and particles more quickly and easily
• Nice features: the 1/8 inch twist drill bits have precise diameter; M35 cobalt drill bits for hardened metal are not easy to break or wear out, so suitable for lithium electric drill, hand electric drill, impact electric drill, etc.; The size is small, please pay attention to use
• Various fitness: M35 high speed steel cobalt drill set is greatly 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
• What you will get: the package contains 15 pieces 1/8 inch cobalt drill bits, sufficient quantity to meet your various needs; Please pay attention to speed, pressure and heat control during drilling

Features :

• 13 PACK OF 1/16″ COBALT DRILL BITS – 1/16″ Diameter with a Flute Length of 7/8″ and Total length of 1-7/8″
• M35, FULLY GROUND, 135° SPLIT POINT – Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135° Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials.
• PLASTIC STORAGE CASE INCLUDED – Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe.
• COBALT DRILL BITS ARE THE PERFECT DRILL BITS FOR METAL – As well as other hard materials such as Stainless Steel, Hardened Steel, Cast Iron, Bronze, Titanium, and More!
• LIFETIME GUARANTEE – Here at Owl Tools (USA Based Company) we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.

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.