20 Best Drill Bit For Thick Steel (2023 Updated)

Our Industrial Cobalt accessories now come in Tough Case+ system, the latest addition to our accessory storage line. The Tough Case+ system are a connectable case system designed to optimize storage space and keep your bits organized.

The patented bit-bar design allows for easy bit removal and the clear lid allows you to see inside at a glance. Industrial cobalt PILOT POINT drill bits are designed for maximum speed and life in stainless steel and other hard metals.

These bits feature a PILOT POINT tip and split tip design that starts on contact and eliminates bit walking. Commonly used for drilling into stainless steel, drilling into angle iron, i-beams, and other similar metals.

Made from industrial grade High-speed steel for increased durability. 8% Cobalt alloy is heat and abrasion-resistant. The 29 bits are made using heavy duty web construction for strength and durability, and the cobalt steel extends the life of cutting edges.

Bosch Cobalt M42 metal drill bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core Cobalt bits deliver 10x life vs. Standard bits, are jobber length and withstand high-heat applications.

The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 in. And larger feature a split point; bits 3/16 in. And larger feature a three-flat shank, for better bit grip.

These Cobalt drill bits provide superior performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals.

Each of these 115 cobalt drill bits comes organized in a metal indexed storage case for easy transport to your worksite. These cobalt drill bits retain their hardness up to 1000 degrees Fahrenheit making them ideal for drilling cast iron, heat-treated steel, stainless steel and other hard materials.

With aggressive 135 degree tips, these cobalt drills bits not only last longer but also cut faster than standard high speed steel bits.

DEWALT Black & Gold Metal Drill Bits feature a black and gold coating to prevent rust. The tapered web design provides extreme durability to resist breakage. The bits feature a 3-flats shank to reduce spin-out in the chuck.

Black & Gold metal drill bits are made of heavy-duty High Speed Steel for drilling into a variety of materials including plastic wood and metal. Each bit features a 135° split point tip design to help reduce walking.

M35 high speed steel with 5% cobalt for strength and wear resistance. 135 split point prevents walkaround. Fully ground with amber finish. Manufactured to DIN338. Always use cooling agent. M35 high speed steel with 5% cobalt for strength and wear resistance.

135 split point prevents walkaround. Fully ground with amber finish. Manufactured to DIN338. Always use cooling agent.

Irwin Cobalt High Speed Drill Bit – M-42 cobalt high speed steel for super abrasive resistance in tough metals – 135 degree split point reduces feed pressure for easier penetration – Carded – 11/64″ D

For drilling in wood – plastic and metal – 135 deg. split point for fast starts & minimal walking – Black oxide finish – provides superior durability – high lubricity to reduce heat build up and prolong the life of the bit – Carded – 1/4″D.

These high speed step drill bits feature a titanium nitride coating so they run cool and are made out of high speed steel for a long service life. The drill bits automatically deburr holes as you drill and the two-flute design provides faster, smoother cutting.

Whether drilling in plastic, metal or wood, these drill bits cut great every time.

Loose HSS Jobber Drill Bits Metric Faithfull extensive range of metric sizes for home user and DIY enthusiasts. These high speed steel (HSS) straight shank drills are suitable for use on both wood and metal and may be used in hand or power drills.

Manufactured to meet DIN 338 standard. A cutting lubricant is recommended when using these drills in metal. PLEASE NOTE: These drill bits are priced individually but supplied only in bulk packs. Sizes up to and including 9mm are supplied in 10’s.

Larger sizes are supplied in 5’s. Size. 8. 00mm.

A dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families. Ideal for production, maintenance or portable drilling jobs. Surface treated with abrasion-resistant black oxide.

Cobalt drill bits: Classic 5% Cobalt M35 High Speed Steel construction with Titanium Coating for proven capability and durability. Hardness: 5% Cobalt drill bits’ Rock wall Hardness Level HRC 65-66. Size: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″ Professional & DIY Use: For use on metal, wood & plastics, Stainless Steel, Not For Use On Concrete / Masonry.

Perfect match for workshop or service vehicles. 135 Tip & Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.

Threaded shank drills are type “D” adapter drills are made from M42 8% cobalt high speed steel are manufactured to NAS 965 Type “D” specifications with 135o heavy duty split point and surface treated for drilling hard, tough, high tensile strength materials.

When drilling low tensile strength materials. When drilling low tensile strength materials, the Type “D” cobalt drill will have a significantly greater tool life than the NAS 965 Type B high speed steel adapter drill, resulting in a much lower cost per hole.

Drill America Cobalt Aircraft Extension Drills are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools.

Drill America Aircraft Extension Drills are manufactured to National Aerospace Standard 907. The 135° split point is self-centering and reduces thrust. Sizes smaller than 1/16 have the 118° standard point.

Drill America Aircraft Extension Drills are available in 6 in. and 12 in. overall lengths when extra reach is required.

Drill America Qualtech 60 piece 118 degrees conventional point general purpose drill bit set comes in a metal case. This dependable drill designed to perform in a broad range of materials in the iron and steel families.

Ideal for production, maintenance or portable drilling jobs. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.

Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. Round shanks allow use with a wide variety of toolholding systems.

When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Up to 40% increase in feed rate when drilling compared to other similar drills without titanium nitride coating. Duration up to 6 times longer in the presence of ideal cooling. 19 super high speed steel twist drills with titanium nitride coating for drilling precise holes in iron, steel, non-ferrous metals, gray cast iron and hard plastics.

Suitable for all brands of power tools. Warning: do not use in aluminum. Only work with coolant, e. g. Bosch Universal Cutting Oil 2 607 001 409. Safety Warning: Wear protective goggles during use.

Speed helix design for three times faster drilling than standard bits Last 50% longer than high-speed steel Easier drilling reduced heat and extended drill bit life Available in jobber length, stubby length, extended length (aircraft), 1/2 In.

reduced shank (Silver and Deming) For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials The Bosch line of metal drill bits offers a solution for every professional application.

Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch. Bosch black oxide bits offer superior durability, speed, and selection to support most general-purpose applications.

General Purpose bit for drilling through metal, wood, fiberglass, stainless steel. 135 degree split point drills on contact and prevents walking. Patented core diameter reduces breakage. Tapered web eliminates bit spinning in the chuck.

Black oxide gives greater wear resistance. This product is manufactured in china. This product meets customer requirement.

Cobalt jobber drills. Heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like stainless steel, inconel, and titanium.

The 135 split point is self-centering and reduces thrust. Sizes smaller than 1/16” or #52, and larger than 1/2” have the 118° standard point.

The metal alloy with 5% cobalt content and the solid ground HSS steel with excellent surface quality, wear resistance and heat protection ensure this extended service life. The two cutting edges and two spiral grooves quickly remove the chips and thus also extend the service life.

This drill drills alloy and unalloyed steel, stainless steel, cast iron, cast steel as well as acid and heat resistant steel. This drill drills alloy and unalloyed steel, stainless steel, cast iron, cast steel as well as acid and heat resistant steel.

The shank is cylindrical (the shank diameter corresponds to the drill diameter). It is used with drill stands and drill drivers. The HSS-Co twist drill is manufactured according to din 338. It belongs to the N type (small side rake angle) with a 135 degree drill tip and h8 diameter tolerance.

The cross-tipped drill tip enables active drilling and perfect centering without hiking.