20 Best Hss Drill Bits [2024]

Are you looking for the best Hss Drill Bits? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Hss Drill Bits.

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1 DEWALT DWA1181 21-Piece Set Black Oxide Coated Hss Twist Drill Bit Set DEWALT DWA1181 21-Piece Set Black Oxide Coated Hss Twist Drill Bit Set
2 DEWALT Drill Bit Set, Black and Gold, 14-Piece (DWA1184) DEWALT Drill Bit Set, Black and Gold, 14-Piece (DWA1184)
3 Twist Drill Bit Set (10 pcs), Micro HSS Twist Drill Bit Set, Straight Shank HSS-4341 for Hard Metal,... Twist Drill Bit Set (10 pcs), Micro HSS Twist Drill Bit Set, Straight Shank HSS-4341 for Hard...
4 ZELCAN HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed... ZELCAN HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed...
5 12 PCS,1/4', HSS Black and Gold Coated Twist Drill Bits, Metal Drill, Ideal for Drilling on mild... 12 PCS,1/4", HSS Black and Gold Coated Twist Drill Bits, Metal Drill, Ideal for Drilling on mild...
6 Lichamp 21PCS HSS Cobalt Drill Bits Set 1/16' to 3/8' with Three Flute for Hard Metal, Hardened... Lichamp 21PCS HSS Cobalt Drill Bits Set 1/16" to 3/8" with Three Flute for Hard Metal, Hardened...
7 Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron,... Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron,...
8 CO-Z Step Drill Bits, HSS 5PCS Titanium Step Drill Bit Set, 50 Sizes in 5 High Speed Steel Unibit... CO-Z Step Drill Bits, HSS 5PCS Titanium Step Drill Bit Set, 50 Sizes in 5 High Speed Steel Unibit...
9 XLCMSY Cobalt Drill Bit Set, M35 HSS Straight Shank Twist Drill Heat Resistant Metal Drill Bits for... XLCMSY Cobalt Drill Bit Set, M35 HSS Straight Shank Twist Drill Heat Resistant Metal Drill Bits...
10 ENERTWIST Titanium Drill Bit Kit Set for Metal and Wood 230-Piece - Coated HSS Conventional 118 Deg... ENERTWIST Titanium Drill Bit Kit Set for Metal and Wood 230-Piece - Coated HSS Conventional 118...
11 amoolo Impact Drill Bit Set, 16pcs Titanium HSS Twist Hex Shank Drill Bit Set for Metal, Steel,... amoolo Impact Drill Bit Set, 16pcs Titanium HSS Twist Hex Shank Drill Bit Set for Metal, Steel,...
12 COMOWARE Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal,... COMOWARE Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal,...
13 VTEVER Cobalt Drill Bit Set M35 HSS 13-Piece Jobber Drill Bit Kit for Stainless Steel,Hard... VTEVER Cobalt Drill Bit Set M35 HSS 13-Piece Jobber Drill Bit Kit for Stainless Steel,Hard...
14 INTOO Mini Drill Bit Set 60 Pcs+12 Pcs Free High Speed Steel HSS Titanium Micro Drill Bits... INTOO Mini Drill Bit Set 60 Pcs+12 Pcs Free High Speed Steel HSS Titanium Micro Drill Bits...
15 HSS M35 Cobalt Twist Drill Bits, Pack of 5 (8mm, 5/16') HSS M35 Cobalt Twist Drill Bits, Pack of 5 (8mm, 5/16")
16 Lichamp 13PCS HSS Cobalt Drill Bits Set 1/16' to 1/4' with Three Flute for Hard Metal, Hardened... Lichamp 13PCS HSS Cobalt Drill Bits Set 1/16" to 1/4" with Three Flute for Hard Metal, Hardened...
17 Mtsooning 10 Pcs 1.2mm Micro HSS Twist Drill Bit Straight Shank Electrical Drilling Tool Mtsooning 10 Pcs 1.2mm Micro HSS Twist Drill Bit Straight Shank Electrical Drilling Tool
18 Champion Cutting Tool Brute Platinum 29 Piece 1/16-1/2' x 64ths HSS Mechanics Length Twister-XL28... Champion Cutting Tool Brute Platinum 29 Piece 1/16-1/2" x 64ths HSS Mechanics Length Twister-XL28...
19 XLCMSY Cobalt Drill Bit Set, M35 HSS Metric Straight Shank Twist Drill Heat Resistant Metal Drill... XLCMSY Cobalt Drill Bit Set, M35 HSS Metric Straight Shank Twist Drill Heat Resistant Metal Drill...
20 ZELCAN Large HSS Spiral Groove Step Drill Bit, 12 Sizes Titanium High Speed Steel 1/4' to 2-3/8'... ZELCAN Large HSS Spiral Groove Step Drill Bit, 12 Sizes Titanium High Speed Steel 1/4" to 2-3/8"...
SaleBestseller No. 1
DEWALT DWA1181 21-Piece Set Black Oxide Coated Hss Twist Drill Bit Set
  • DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass
  • Parabolic flute design increases chip ejection in metal and wood drilling applications
  • Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer
  • 135° Split-point tips drill on contact and prevents walking on the hard surface you’re working on
  • 31° Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes
SaleBestseller No. 2
DEWALT Drill Bit Set, Black and Gold, 14-Piece (DWA1184)
  • 135 Degree Split point tip design to help reduce walking
  • High Speed Steel to be used in plastic, wood, and metal
  • Tapered web design for extreme durability and resisting breakage
  • Black and gold coating to help prevent rust and wear
  • 3-Flats shank to reduce spin-out in the chuck
Bestseller No. 3
Twist Drill Bit Set (10 pcs), Micro HSS Twist Drill Bit Set, Straight Shank HSS-4341 for Hard Metal,...
  • Product Information: include 10 pieces HSS Twist Drill Bit each size of 1 mm with Small bottle packing. Material: HSS-4341.
  • Operation Guide: The bottoms of micro drill bits are specially designed for operating easily.
  • Excellent Performance and Stability: Bit is constructed of high-speed steel that reduces friction and over-heated for the best combination of...
  • Multi-purpose Use: Drills accurate and clean holes in thinner, low hardness of wood and soft-metal hole processing, for home repairs and light jobs.
  • Meet Your Demands: Great drill bits set for metal/wood/plastic sink. Suitable for Home DIY, and General Building/Engineering Use.
Bestseller No. 4
ZELCAN HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed...
  • HSS Steel Construction ----- High-speed steel construction for longer cutting edge life even at extreme temperatures.
  • Titanium Coating ----- Coated by titanium, this step drill set performs well in heat, corrosion and rust resistance.
  • Automatic Center Punch ----- Delivers an automatic, high-impact, spring-loaded strike when pressed against surface, adjustable cap regulates striking...
  • 50 Size In 5 ----- The bits set includes five standard step drill bits that can replace 50 individual drill bits.
  • A Must-have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper and many...
Bestseller No. 5
12 PCS,1/4", HSS Black and Gold Coated Twist Drill Bits, Metal Drill, Ideal for Drilling on mild...
  • Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.
  • Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.
  • Package & Size: 12 Pieces in a plastic bag, Diameter 5/16 inch, Total length 4 inch, Working length 2-3/4 inch.
  • Professional & DIY Use: For use on metal, wood & plastics. Not For Use On Concrete / Masonry / Stainless Steel. Perfect match for workshop or service...
  • 135 Tip & Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.
Bestseller No. 6
Lichamp 21PCS HSS Cobalt Drill Bits Set 1/16" to 3/8" with Three Flute for Hard Metal, Hardened...
  • UNIQUE 3X FLUTE DESIGN - Lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling...
  • 4X LIFESPAN MATERIAL - Made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100...
  • 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.
  • 21PCS DRILL BIT SET - Metal index case with size chart for easy bit access and identification. Includes drill bit sizes 1/16-inch to 3/8-inch in...
Bestseller No. 7
Hymnorq 15 Piece Metric M35 Cobalt HSS Drill Bit Kit with Straight Shank for Drilling Cast Iron,...
  • COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67,...
  • 135°SPLIT POINT - the 135°quick-cut split point are self-centering and able to penetrate metals quickly with less pressure, prevent bits from...
  • 15PC METRIC SET - The set includes 15pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7...
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although...
  • DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some...
Bestseller No. 8
CO-Z Step Drill Bits, HSS 5PCS Titanium Step Drill Bit Set, 50 Sizes in 5 High Speed Steel Unibit...
  • Extreme Durabikity: Cobalt high speed steel drill bits along with the titanium coating ensures extreme durability, will stay new and shiny for years...
  • Different Sizes of Holes Can Be Drilled: Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. You are capable to drill...
  • Smooth Drilling: Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board...
  • Use Center Punch to Mark the Spot: Please mark the spot that you are to drill for easier drilling and improved drill bits life.
  • Keep Your Step Drill Bits Well Organized: All the bits come in a well-organized case for easy transport and storage.
Bestseller No. 9
XLCMSY Cobalt Drill Bit Set, M35 HSS Straight Shank Twist Drill Heat Resistant Metal Drill Bits for...
  • 【Heat Resistant】 This straight shank twist drill set is made of 5% cobalt high speed steel, adding molybdenum and cobalt to form a hardened alloy...
  • 【Safe & Eco-friendly】 High speed steel with 5% cobalt, durable, safe and eco-friendly, providing longer tool life and reducing environmental...
  • 【Lightweight & Durable】 Designed with a 135 degree split point, these drill bits are very lightweight, eliminating the need for a center punch,...
  • 【Multiple Sizes & Widely Used】 The metal drill bits set for steel are available 13 sizes to meet your different needs, drill bit sizes include :...
  • 【Practical Design】 The metal drill bits kit features a straight shank design that makes it easier to fix and precisely machine, saving time and...
Bestseller No. 10
ENERTWIST Titanium Drill Bit Kit Set for Metal and Wood 230-Piece - Coated HSS Conventional 118 Deg...
  • ▲FULL SIZE SET - Kits includes from 3/64-inch to 1/2-inch in tough plastic case
  • ▲TITANIUM COATING - Reduces heat buildup for longer life, Lasts X 6 more than conventional bits
  • ▲MULTIPURPOSE USE - Ideal for drilling in metal, wood, fiber glass and plastics, Not for use on Concrete or Masonry
  • ▲WELL ORGANIZED - All sizes are indexed on tray to keep all components organized, with sponge cushion between the upper and lower halves to avoid...
  • ▲WARRANTY - Backed by EnerTwist 1-Year Warranty & 30-Days Satisfaction Guarantee. Welcome contact Enertwist service team for anything regarding this...
Bestseller No. 11
amoolo Impact Drill Bit Set, 16pcs Titanium HSS Twist Hex Shank Drill Bit Set for Metal, Steel,...
  • WIDE APPLICATIONS - compatible with power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks, allowing for quick changing...
  • UPGRADED STRUCTURE - press in pin connection makes the bit and hex shank an integrated structure to prevent break off during drilling, greatly reduced...
  • ELIMINATES WOBBLING & CHATTER - the final straighten process is added before shipping from the factory. which keep the bit in a straight line during...
  • DESIGNED BLADEPOINT - these bits with a 135° split point keep centered without a pilot hole, full-ground body drill faster with fewer defects than...
  • WHAT YOU GET - combo set of 16 pcs, 13 most commonly-used sizes (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") to...
Bestseller No. 12
COMOWARE Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal,...
  • 29 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", 17/64", 9/32", 19/64", 5/16", 21/64",...
  • 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...
  • ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing.
Bestseller No. 13
VTEVER Cobalt Drill Bit Set M35 HSS 13-Piece Jobber Drill Bit Kit for Stainless Steel,Hard...
  • 【M35 Cobalt Steel】These twist drill bit set made of high-quality M35 cobalt-containing high-speed steel, resistant to high temperature and...
  • 【Smooth design】: With 135 degree self-centering tip, apply pressure evenly, Hardened and polished to form a sharp cutting edge, the precision...
  • 【Chip removal chute】:Classic humanized double spiral chip evacuation groove design. The grooves-2 grooves help remove chips and debris from the...
  • 【Package】: The twist diamond set comes with its own red outer box for easy storage and outer box snap hook for easy locking storage with a...
  • 【Widely application】: This set of twist drill is especially suitable for drilling in stainless steel, cast iron, copper, aluminum alloy and other...
SaleBestseller No. 14
INTOO Mini Drill Bit Set 60 Pcs+12 Pcs Free High Speed Steel HSS Titanium Micro Drill Bits...
  • SPECIFICATIONS: 60pcs+12pcs FREE HSS titanium drill set, inch size 3/64",1/16", 5/64", 3/32", 7/64", 1/8", 12 pcs/size
  • HSS MATERIAL: Industry grade high speed steel with high hardness, good wear resistance and durability.
  • CHARACTERISTICS: 118° precise point with sharpened edge promises cutting speed ; titanium coating increases the ware-resistance and durability of the...
  • PROFESSIONAL & DIY USE: widely used in Steel, Wood, Plastic, etc. Ideal for DIY, home and general building/engineering using. Not for masonry and...
  • STORAGE PACKING: each size 12pcs packed into a single transparent plastic box for non-disposable use,moreover, maximize rust protection. 6-size boxes...
Bestseller No. 15
HSS M35 Cobalt Twist Drill Bits, Pack of 5 (8mm, 5/16")
  • Drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel
  • High Quality Material. High Speed Steel 5% Cobalt M35.
  • High Efficiency In Drilling Metals, and Stainless Steel.
  • Reduce the processing cost per hole
  • The imperial size 5/16" is for reference,5/16" equals to 7.94mm. Real size is 7.96mm, we rounding up 8mm.Please confirm the size before ordering.
Bestseller No. 16
Lichamp 13PCS HSS Cobalt Drill Bits Set 1/16" to 1/4" with Three Flute for Hard Metal, Hardened...
  • UNIQUE 3X FLUTE DESIGN - Lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling...
  • 4X LIFESPAN MATERIAL - Made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100...
  • 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.
  • 13PCS DRILL BIT SET - Metal index case with size chart for easy bit access and identification. Includes drill bit sizes 1/16-inch to 1/4-inch in...
SaleBestseller No. 17
Mtsooning 10 Pcs 1.2mm Micro HSS Twist Drill Bit Straight Shank Electrical Drilling Tool
  • Small bottle packing.Suitable for a small object processing.
  • Straight shank design is more suitable for many electric drills.Sharp and twisted flute will make the drilling be more easy and effortless.
  • Suitable for wood, aluminum, plastic, etc.Product Name: Twist Drill Bit.
  • Design: Straight Shank.
  • Material : HSS-4341.Diameter Size : 1.2mm.
SaleBestseller No. 18
Champion Cutting Tool Brute Platinum 29 Piece 1/16-1/2" x 64ths HSS Mechanics Length Twister-XL28...
  • Drill 3x Longer (than competitors drills), Drill 2x Faster (than cobalt), Drill Accurate (135 deg split point, tapered web geometry)
  • Better than cobalt-XL28 is able to flex when cobalt drills chip or snap.
  • Reduced overall length provides added strength and rigidity. Flatted shanks for fast chucking in keyless power tools.
  • Premium high speed steel and NOMO surface treatment for longer tool life, fast penetration, and flexibility. Self centering 135 degree split point...
  • Ultimate workhorse for drilling steel, stainless steel, titanium alloys and other hard to drill materials
Bestseller No. 19
XLCMSY Cobalt Drill Bit Set, M35 HSS Metric Straight Shank Twist Drill Heat Resistant Metal Drill...
  • 【Heat Resistant】 This metric straight shank twist drill set is made of 5% cobalt high speed steel, adding molybdenum and cobalt to form a hardened...
  • 【Safe & Eco-friendly】 High speed steel with 5% cobalt, durable, safe and eco-friendly, providing longer tool life and reducing environmental...
  • 【Lightweight & Durable】 Designed with a 135 degree split point, these metric drill bits are very lightweight, eliminating the need for a center...
  • 【Multiple Sizes & Widely Used】The metal drill bits set for steel are available 13 sizes to meet your different needs, drill bit sizes include :...
  • 【Practical Design】The metal drill bits kit features a straight shank design that makes it easier to fix and precisely machine, saving time and...
SaleBestseller No. 20
ZELCAN Large HSS Spiral Groove Step Drill Bit, 12 Sizes Titanium High Speed Steel 1/4" to 2-3/8"...
  • Durable Titanium Coated Bits ----- The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance...
  • Jam-Free Performance ----- The dual-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly...
  • Universal Compatibility ----- The rapid strike tip drills twice as fast as the average step drills and can drill acrylic, PVC, wood, aluminum and iron...
  • Larger Size ----- Our drill bit is bigger in size so it can drill holes with larger dimensions.
  • One Bit for All ----- The bit comes with 12 hole sizes: 6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm. , saving you time and...

Having trouble finding a great Hss Drill Bits?

This problem is well understood by us because we have gone through the entire Hss Drill Bits research process ourselves, which is why we have put together a comprehensive list of the best Hss Drill Bitss available in the market today.

After hours of searching and using all the models on the market, we have found the best Hss Drill Bits for 2023. See our ranking below!

How Do You Buy The Best Hss Drill Bits?

Do you get stressed out thinking about shopping for a great Hss Drill Bits? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Hss Drill Bits, which is why we have assembled a comprehensive list of the greatest Hss Drill Bits available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Hss Drill Bits that you consider buying. Your questions might include the following:

  • Is it worth buying an Hss Drill Bits?
  • What benefits are there with buying an Hss Drill Bits?
  • What factors deserve consideration when shopping for an effective Hss Drill Bits?
  • Why is it crucial to invest in any Hss Drill Bits, much less the best one?
  • Which Hss Drill Bits are good in the current market?
  • Where can you find information like this about Hss Drill Bits?

We’re convinced that you likely have far more questions than just these regarding Hss Drill Bits, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Hss Drill Bits, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Hss Drill Bits. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Hss Drill Bits buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Hss Drill Bits currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Hss Drill Bits has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Hss Drill Bits?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Hss Drill Bits.
  5. Customer Ratings: Number ratings grade Hss Drill Bits objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Hss Drill Bits.
  7. Product Quality: You don’t always get what you pay for with an Hss Drill Bits, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Hss Drill Bits is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Hss Drill Bits information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What are the best quality drill bits?

A: Drill bits are 5% cobalt (3018002), IRWIN has 3018002b bits which are cobalt 8% (better, but more expensive). Cobalt alloy is heat and abrasion-resistant. These are the best quality drill bits for making holes in stainless steel.

Q: What drill bit is best drill?

A: Best Overall: DEWALT DW1361 Titanium Pilot Point Drill Bit Set. … Drill Hog 2.29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA Drills. … Best Value: Tooluxe 10171L 13-Piece Titanium Drill Bit Set. … DEWALT DW1354 Brad-Point Drill Bits. … Irwin Tools 3018002 Cobalt Metal Drill Bit Set. … Tooluxe 10055L Titanium Coated Hex Shank Drill Bits. …

Q: What is the best drill bit material?

A: Cobalt drill bits offer the best heat-resistance and a rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium . Black oxide bits offer superior durability, speed and selection for most general purpose applications.

Q: What does HSS mean when it comes to drill bits?

A: High-speed steel (HSS) High-speed steel is the most commonly used alloy steel for metal drill bits. … Cobalt. Cobalt,combined with an alloy steel like HSS (usually 5%),offers strength and resistance,and increases the hardness of the bit .Cobalt retains its properties at a higher temperature … Titanium. … Tungsten carbide. …