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Selecting the right industrial drill bit is crucial for efficiency, safety, and the longevity of your tools. The correct bit ensures clean, precise holes, reduces strain on your equipment, and prevents premature wear. Investing in quality bits for your industrial applications will significantly impact project timelines and outcomes.
Titanium Nitride Coating Pilot Point for Longer Life
Starts on contact for cleaner holes
No spin shanks
Tapered web provides greater durability to reduce breaking
Includes sizes from 1/16-inch to 1/2-inch in a plastic tough case
Includes: 1/16' x 2, 5/64' x 2, 3/32' x 2, 7/64' x 2, 1/8' x 2, 9/64' x 1, 5/32' x 1, 11/64' x 1, 3/16' x 1, 13/64' x 1, 7/32' x 1, 15/64' x 1, 1/4 x 1, 5/16' x 1, 3/8' x 1, 1/2' x 1
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 Jobber Length Drill Bit Kit 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 refer to us and we will be happy to help you
Cobalt M35 Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with the average HSS titanium coated bit, save time and improve efficiency
Hardened Full Grinding Process: Increases wear resistance, sharp and durable, used for stainless steel, cast iron, zinc alloy, titanium, aluminum, hard metal, plastic and wood
Packaging: Hard and thick plastic box, drills bagged for compartmentalized storage, reasonable design, well secured package
Convenient Access: Various sizes are placed in different compartments of the plastic box, and the corresponding sizes of different drills are printed on the bottom of the lid, making it very convenient to access
Widely used: Whether you're a home DIYer or workshoper of professional drilling, it's a great tool
Use Notices: Drill bit should be vertical to the workpiece when used; controling low speed from 200 to 1000 rpm; using cutting fluid will stay cool to make the bit last longer
HIGH SPEED STEEL: These metal drill bits for steel are made of high speed stainless steel and is designed to ensure sharp and fast execution in any material leaving clean results. This 8-piece drill-bit set is capable of drilling through plastic, copper...
LARGE DRILL BIT SET: Heat treated carbon steel with a black enamel coating is durable and can withstand heavy duty operation for a long tool life.
PRECISION DRILLING SET: Bit is precision ground with geometry of 135-degree split point for quick self-centering penetration and an accurate start that prevents walking and clears chips and particles faster.
DRILL PRESS BITS: Tri-flat on the shanks of drills are constructed for tighter chucking maximizing security for precise holes. This pattern allows the bits to fit securely into your power tools and helps eliminate slippage.
DRILL BIT SET INCLUDES: Complete set of 8 pieces come in a convenient storage case for easy storage and portability; sizes include: 1/2" Shank x 9/16" Drill Bit, 5/8" Drill Bit, 11/16" Drill Bit, 3/4" Drill Bit, 13/16" Drill Bit, 7/8" Drill Bit...
M35 Cobalt Drill Bit: Premium High Speed Steel M35 (Cobalt 5%) offers superior heat resistance and greater hardness compared to ordinary drill bits. It can extend the tool's service life when drilling hard materials.
135° Split Point Design: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip with round straight shank, self-centering to prevent walk-off , make drilling precise and faster.
Efficient Drilling: Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
Various Sizes: 29 sets of drill bits include...
Widely Used: M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods.
Set Includes: The set includes 29Pcs (1/16"-1/2") Cobalt Drill Bits, This cobalt drill bit also includes the drill bit holder with size index for easy storage and organizing.
GOLD STEPPED POINT COBALT: Drill America GSC Series Gold Stepped Point Cobalt Drill Bits start easier, drill faster, increase lifespan, and reduce heat compared to standard drill bits
BEST USES: This 29pc set comes with storage holder case and can be used as an enlarger for existing holes or to create new, smoother holes for multi material drilling in acrylic, steel, brass and other hardened metals
135 DEGREE CUTTING ANGLE: These drill bits have a 135 degree split point tip and 3 -flat shank to prevent spinning; Sizes 11/64" and smaller have a round shank; Drill Bits have a gold oxide finish and jobber length
ABOUT DRILL AMERICA: Drill America specializes in supplying a full line of industrial and contractor cutting tools since 1923; Our products include drills, taps and dies, reamers, end mills, carbide burs, countersinks and more
▲ PREMIUM QUALITY - Industrial grade M2 cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, cast iron, mild steel, stainless steel, sheet metal and more
▲ FAST AND EFFICIENT - The 135° split point design at tip increases cutting and drilling speed through self-centering and prevents drills from walking or wobbling; The twisted blade with deep groove design clears out chips and particles faster than...
▲ SUPERIOR COATING - Best gold titanium and black nitride dual coating finish holds up lubricant more firmly for a smoother drilling process, and is also 80% more durable and corrosion resistant than regular black enamel finish to withstand heavy duty...
▲ COMPATIBILITY AND FIT SECURELY - The 1/2 Inch reduced shank is compatible with all drill presses and most power tools in the market, and the unique Tri-flatted shank end locks onto a 3-jaw chuck more tightly and securely to eliminate slippage during...
▲ NO SKIPPED LARGE SIZES - Set includes a full range of 8 pieces large-diameter silver and deming drill bits in a heavy duty aluminum storage case for easy carrying and organizing. Sizes...
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Industrial Drill Bits
Understanding Material Hardness
Understanding the material you'll be drilling into is the first step. For softer materials like wood or plastic, high-speed steel (HSS) bits are generally sufficient. For harder metals such as steel, stainless steel, or cast iron, cobalt or carbide-tipped bits offer superior durability and heat resistance. Titanium coatings on HSS bits can also improve performance on medium-hard materials.
Drill Bit Types and Their Applications
Different bit geometries are designed for specific tasks. Twist bits are the most common, suitable for general-purpose drilling in various materials. Masonry bits are designed with carbide tips for drilling into concrete, brick, and stone. Spade bits (paddle bits) are ideal for creating larger holes in wood, while annular cutters are used for making large-diameter holes in metal quickly and efficiently.
Shank Types and Compatibility
The shank is the part of the drill bit that inserts into the drill chuck. Common shank types include round, hex, and SDS. Round shanks are standard for most drills. Hex shanks offer better grip and reduce slippage, especially in impact drills. SDS shanks are designed for hammer drills and rotary hammers, providing a secure lock and efficient power transfer for heavy-duty tasks.
Bit Length and Diameter Considerations
The required length and diameter of the drill bit depend on the depth and width of the hole needed. Longer bits are necessary for deep holes, but they can be less rigid and more prone to bending. Ensure the diameter matches your project's requirements. For very large holes, consider using a hole saw or an auger bit in conjunction with your drill.
Frequently Asked Questions
What is the difference between HSS and Cobalt drill bits?
High-Speed Steel (HSS) bits are a standard choice for many applications, offering good wear resistance. Cobalt bits are an alloy of HSS with cobalt, making them harder and more heat-resistant, ideal for drilling into tough metals like stainless steel.
When should I use a masonry bit?
Masonry bits are specifically designed for drilling into hard, brittle materials like concrete, brick, block, and stone. They feature a carbide tip that can withstand the impact and abrasion associated with these surfaces.
How do I prevent drill bits from overheating?
Using the correct drill speed for the material and bit type is essential. Applying a cutting fluid or lubricant can also help dissipate heat and prolong the life of the bit. Periodically withdrawing the bit during drilling allows for cooling.
What does a titanium coating do for a drill bit?
A titanium nitride (TiN) coating on a drill bit increases its surface hardness and lubricity. This results in faster drilling speeds and extended bit life, particularly when working with metals and harder materials.
Are carbide-tipped bits suitable for wood?
While carbide-tipped bits are excellent for masonry and hard metals, they are generally overkill for wood. Standard HSS twist bits or specialized wood bits like brad-point or spade bits are more appropriate and cost-effective for woodworking.
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