What are the best drill bits for hardened steel

Impact Drill Bit Set for Hardened Metal 7 pcs German High Speed Steel Bits for Professional Duty with Metal Case

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Description:

Proffi's High speed steel drill bit set is made exclusively in Europe from best quality M2 steel, which is produced in Germany, France and Austria. Our drill bits are made from solid metal, while most of the manufacturers reduce costs by using the best quality metal only for tip of the drill bit. Furthermore each of the drill bit set quality is manually inspected to ensure maximum quality and reliability:

Perfect for metals, alloyed, constructional steels, cast iron, plastic and other materials.

Specially designed split-point for easy drilling start and great performance.

Made of M2 High Speed steel produced exclusively from three vendors: Erasteel (France); Beulmann (Germany); Boehler International (Austria).

Perfect hardness score (HRC - Rockwell scale): 62,5 - 63,5. Lower score results in lower durability; higher score results in fragility of a drill bit.

Production line is set up to meet DIN, JIS, ANSI, GOST and ISO EN 9001 standards. The drill bit set consists of seven drill bits, which are carefully selected to meet all the housework and construction needs.

Proffi's drill bits are used by top companies in aeronautics, German car manufacturers, premium class tyres manufacturer, luxury Swiss watches company and etc,

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  • ENHANCED DURABILITY. Up to 25 times more durable than regular HSS drill bit. Proffi's set is the best choice for professional/ industrial use and advanced specialists.
  • PERFECT PERFORMANCE. Drill bits scored 63,5 in Rockwell scale, what ensures maximum durability with lowest fragility in the class of professional drill bits. Each drill bit has 135 degree split-point which ensures precise drilling start and perfect accuracy.
  • UNIVERSAL. Perfect for drilling hardened steel, cast iron, carbon, alloys, cast iron, plastic and other materials. Drill bits sizes are carefully selected to meet the needs of the most demanding professionals in all cases.
  • MADE IN EUROPE. Made of M2 HSS (with at least 5 Tungsten) produced exclusively from three vendors: Erasteel (France); Beulmann (Germany); Boehler International (Austria). Each drill bit is manually inspected by quality experts to ensure superior quality.
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QLOUNI 6Pcs Countersink Drill Bit 1/4" Hex Shank 90 Degree HSS 5 Flute Countersink for Wood Quick Change Bit 6mm-19mm

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Description:

QLOUNI 90 HSS Countersink Bit with 1/4'' hex shank and can be installed on electric drills or electric wrenches with hexagonal interface
Professional Countersink Drill Bit Set meet what u need!

The countersink provides space for the screw head to sit flush (or below) the surface

Five-blade Chamfering with A Groove
The countersink drill bits are made of standard high speed steel and super hard titanium coated, and the cutting edge are very sharp which can remove burrs well without leaving scratches.

6 Different Sizes Drill Bit Set
HSS Chamfering Cutter contains sizes: 6mm(1/4''), 8mm(5/16''), 9mm(3/8''), 12mm(1/2''), 16mm(5/8''), 19mm(3/4''); handle diameter: 6.35mm (1/4 inch quick change hex shank)

Specifications
Shape: 5 flute
Edge: 90 degrees
Material: high speed steel 4241 (for parts with a hardness below 50hrc, such as carbon steel, thin steel plate, insulation board, PVC board, wood, etc.)

Package includes
1 x 6mm Drill
1 x 8mm Drill
1 x 9mm Drill
1 x 12mm Drill
1 x 16mm Drill
1 x 19mm Drill

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  • Sharper and Tougher The whole drill bits is using high-frequency quenching for heat treatment, with titanium to prevent rust, and the cutting edge is hardened and honed for sharpness
  • 6 Diameter Sizes Contains sizes 6mm(1/4''), 8mm(5/16''), 9mm(3/8''), 12mm(1/2''), 16mm(5/8''), 19mm(3/4''); handle diameter: 6.35mm (1/4 inch hexagonal handle)
  • 5 Flute 90 Degree Countersink All have a 90 angle on the point for sharp and precise countersinking, five-flute designed to insure free chip flow and rapid chatter free cutting
  • Easy to Use 1/4 hex shank remain stable in drill bit holder, ensure the correct size, pilot hole first, followed by the countersink
  • Widely Used Drill bits mainly used for wood openings, reaming, chamfering, screw head and so on. Also applies to MDF, plywood, acrylic, PVC board and soft metal such as aluminum, copper and so on







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KAKOO 51 Pcs Pin Vise Hand Drill Set with Micro Twist Drill Bits for Drilling Tool DIY Model Making

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Description:

Specifications:
Material:Pin Vise-Alloy; Twist Drill Bits-High speed steel.
Color:As the photo shows.
Size:Pin vise length-9.5 x 3.3 cm.
Drill bits sizes - 3pcs for each sizes-0.5,0.6,0.7,0.8,0.9,1.0mm ; 2pcs for each sizes-1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0mm ; 1pcs for each sizes-2.1,2.2,2.3,2.4,2.5,2.6,2.7,2.8,2.9,3.0mm.
Chuck clamping range:0.3 - 3.5mm(1/ 64 - 9/ 64 inches).

Package Include:48pcs drill bits,1pcs pin vise,1pcs tweezer and a transparent storage box.
48pcs different sizes of drills can meet your varieties of needs,the storage box can help you to organize it when you no need it,also can protect the drill bit and easy to carry.
Most suitable for the materials of wood,jewelry,walnut,amber,beeswax,resin,olive nut,beads,PVC and acrylic,etc.
Warm Notice:
The hand drill is a manual tool,not a power tool.
This products not recommended to use for steel,iron,stone,glass,such hard material.
Please keep away from the kids under 3-year-old to avoid hurting by mistake.

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  • What You Will Get:This kit comes with a black hand drill, 48 twist drills(3pcs for each sizes-0.5,0.6,0.7,0.8,0.9,1.0mm ; 2pcs for each sizes-1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0mm ; 1pcs for each sizes-2.1,2.2,2.3,2.4,2.5,2.6,2.7,2.8,2.9,3.0mm.), a small tweezers and a transparent storage box.
  • High Quality & Great Design:This hand drill is made of high quality alloy,and the twist drill bits are made of high speed steel,the drill pin vise has 3-jaw hardened steel keyless chuck,easy to operate and the suitable length handle is nice for you to hold
  • Precision Pin Vise:Perfect for doing precision crafts,watch repair,model making,electronics,detail processing,the package include 26 sizes of drill bits,can help you to finish various of your daily needs.Also the adjustable chuck clamping range for 0.3-3.5mm can make sure to grip the small drill bits tightly and not falling off.
  • Portable & Easy To Store:The pin vise set is including a clear small storage box,convenient for you to organize the small parts when you are no using,and if you need to carry outside,you just need put what you need in the small box,also the transparent color will help you to check whether the products in it or not.
  • Multipurpose:This pin vise set not only suitable for the materials of wood,resin,jewelry,amber,olive,beads,walnut,beeswax,olive nut,plastic for DIY,but also can use for holding small drills,wires,reamers. or tool making,model making.






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Migiwata 3/16 Inch Fractional Size M35 Cobalt Steel Extremely Heat Resistant Jobber Length Twist Drill Bit Set of 10pcs with Straight Shank for Repeated Drilling Projects in Stainless Steel and Iron

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Description:

OVERVIEW
Different types of drill bits are used to cut holes in different types of materials. This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.
Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit.
Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.
Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer.

NOTICE: The working life of the drill bits can be largely prolonged by using with cooling liquid.
This set M35 grade cobalt drill bits are not suitable for hardened steel.

TECHNICAL DETAILS:
Material: M35 Cobalt Steel
Angle Point: 135 Degree
Flute Type: Spiral
Hardness: Rockwell 67
Shank Type: Straight Shank

WHAT'S INCLUDED:
3/16" Cobalt Steel Drill Bit x 10pcs
Plastic Case x 1pc

BUY WITH CONFIDENCE:
Within 90 days, if you're not completely satisfied with the product quality, please contact us. 100 refund.

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  • Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • No center punch is needed-the 135 Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander"
  • Extremely heat resistant; must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks
  • The set includes 10pcs of 3/16" diameter M35 grade cobalt steel twist drill bits
  • Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.






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KCC Industries Spot Weld Cutter Set (2 Pack) 2 Replacement Blades

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Description:

KCC Industries DR4402 Premium Value Pack 3/8 Inch Double Sided High Speed Rotary Spot Weld Cutter Drill Bit Tool (2 Pack) Bonus 2 Replacement Blades


Features:

  • Our materials are what set us apart from the rest. Our high quality heat resistant steel blades allow for reliable cuts over and over again.
  • The perfect tool for removing spot-welded panels or metal sheets without distorting the metal or damaging the underlying panel
  • Alleviates the need to pry and break welds
  • Double-sided blades allow for twice the efficiency
  • Save time and money with this bonus pack that includes 2 arbors with cutting blades PLUS 2 extra blades!
  • Extra blades allow you to avoid the risk of needing to pause in the middle of a job due to dulling blades
  • Drill slow and steady when using these bits and use high temperature lube (not included) to maximize the life of the blades
  • High temperature lube is the best way to extend blade life but is not required to use this tool. Simply replace the blade when it begins to dull
  • Center pin on the bit is spring loaded and will depress to allow for tension and provide guidance to begin the cut
  • Note: Pre-drilling a hole in the center of the spot weld or using a center punch to create a starting point provides extra guidance/stability when beginning the cut
  • Everything is packaged into a durable plastic tube for easy transport and storage
  • Great addition to any welder's tool kit!


  • Included in Package:

  • 2x Arbor w/ Double-Sided Cutting Blade
  • 2x Double-Sided Replacement Cutting Blades
  • Instruction Manual


    KCC Industries is a veteran-owned business, and we offer a 100 satisfaction guarantee. If you are not completely satisfied with your purchase within 90 days, send it back for a full refund - no questions asked!

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    • DURABLE - Double-Sided 3/8" Heavy Duty High Speed Rotary Metal Cutting Blade Made From High-Quality Heat Resistant Steel. Our Center Pins are Made of a Higher-Quality, Thicker Steel than the Competition - Cutters with the Black Center Pin are Made of a Cheaper Metal and Snap Easily
    • FAST - Quickly Separates Spot-Welded Panels Without Distortion
    • PERFECT SIZE - 3/8" Diameter Cutting Blade is Ideal for Removing Spot Welds
    • UNIVERSAL FIT - 1/4" Standard Size Arbor with Flats to Eliminate Spinning in Chuck (fits 1/4" and larger drills)
    • VALUE - Includes 2 Arbors w/ Cutting Blades 2 Replacement Cutting Blades. KCC Industries is veteran-owned, and we give the utmost attention to detail and customer satisfaction. Feel free to contact us with questions or concerns.






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    6 Point Torx Star Bit Set 16 Pieces Assorted Tamper Proof Star Bits For Automotive, Repairs, Trucks, Cars, Engines, Motorcycle, Interiors, Dash, Computers, And Consumer Electronics- -By Katzco

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    Description:

    6 Point Torx Star Bit Set - 16 Pieces Assorted Tamper Proof Star Bits For Automotive, Repairs, Trucks, Cars, Engines, Motorcycle, Interiors, Dash, Computers, And Consumer Electronics -By Katzco

    Having problems with the interior of your car?

    Maybe you are trying to replace a hard disk drive or graphics card in your computer.

    Well look no further because you can rely on Katzcos torx star bits to take care of all of these needs.

    Katzco torx bits come in a variety to fit your needs.

    Come in 1/4" shank hex bits.

    6 pieces of:

    T10 T15 T20 T25 T30 T40

    5 Pieces of:

    T5 T5.5 T6 T7 T8 T9.

    2 Pieces of

    2 Inch T45 and T50.

    Get the job done no matter what.

    Bits are made of a Heavy-Duty Construction for optimal use. High grade professional quality S2 tool steel hardened & tempered for long lasting use and durability.

    Torx bit set comes with an included holder to store all of your bits in conveniently.

    Easily store in any area for easy accessibility to your bits when needed such as:

    Garages Workbenches Toolsheds

    Katzco 5 point bits are essential when working on German made vehicles.

    Can be used on many of today's

    Cars Trucks Motorcycles, etc.

    Common applications include:

    Electrical sensors Interior Dash Body & trim pieces Replacing computer parts.

    High quality steel construction of these bits makes them resistant to any rust giving these bits a longer life of use.

    Why take it to someone who will charge you when you can do it yourself and save loads of money.

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    • VARIETY OF SIZES- Katzco torx bits come in a variety to fit your needs. Come in 1/4" shank hex bits. 6 pieces of T10, T15, T20, T25, T30, T40. 5 Pieces of T5, T5.5, T6, T7, T8, T9. 2 Pieces of 2 Inch T45 and T50.
    • DURABLE- Bits are made of a Heavy-Duty Construction for optimal use. High grade professional quality S2 tool steel, hardened & tempered for long lasting use and durability.
    • CONVENIENT- Torx bit set comes with an included holder to store all of your bits in conveniently. Easily store in any area for easy accessibility to your bits when needed.
    • VERSATILE- Katzco 5 point bits are essential when working on German made vehicles. Can be used on many of today's cars, trucks, motorcycles, etc. Common applications include electrical sensors, interior, dash, body & trim pieces, replacing computer parts.
    • RUST RESISTANT- High quality steel construction of these bits makes them resistant to any rust giving these bits a longer life of use.






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    Hard-to-Find Fastener 014973325732 Cement Board Self-Drilling Screws, 8 x 1-1/4, Piece-172

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    Description:

    We stock a wide variety of fasteners ideal for many applications arround the home, farm, business, automotives, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thouroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.

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    • Diameter: #8
    • Length: 1-1/4 inch
    • Material: Steel
    • Finish: Grey Ceramic Coating
    • Head Style: Wafer (#2 Phillips Bit)
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    Rocaris 5 Piece Rotary File Rasp Carbide Burrs Set Wood Carving Bits Ball, Oval, Cylinder, Large Tree, Small Tree, Grinding, Polishing, Carving, Trimming, 1/4 Shank Fits All Drills

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    Description:


    5 Piece Rotary File Rasp Carbide Burrs Set - Wood Carving Bits - Ball, Oval, Cylinder, Large Tree, Small Tree, Grinding, Polishing, Carving, trimming, - 1/4 Shank Fits All Drills

    the easiest way and the cheapest price ever and they will stay good, our set is made from high quality Carbon steel High-carbon steel tempered and hardened for long-life, Use for

    Grinding,

    Polishing,

    Carving,

    Burnishing wood surface,

    Material: 45# steel

    Color: Black

    Shank diameter:6.35mm( 1/4")

    Shape: Cylindrical, ball, conical, pointed tree, inverted cone

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    • WHAT IS IT: Heavy duty rotary rasp set for power drills, air tools, and die grinders. Use fore grinding, polishing, carving, and burnishing wood surface,
    • PACKAGE CONTAINS: Five of the most commonly-used rasp configurations and styles: 1/4" shanks to fit all electric and cordless drills.
    • HIGH QUALITY: Carbon steel High-carbon steel tempered and hardened for long-life cutting power, makes all you're grinding needs easier and more convenient
    • CHECK US OUT: When it comes to purchasing your tools, you have plenty of options. However, a reputable company that cares about you and your project will help you experience a better result. Warehouse has a large variety of tools, accessories and supplies to meet your immediate needs and your needs in the future
    • SATISFACTION GUARANTEED: Drill Warehouse will make sure that you will be satisfied with this set you buy from us. You are protected with our 100 No Questions Asked Guarantee for either a replacement or refund. We care about only putting out high quality products that satisfy your needs. If there is anything you need that we don't offer we go and find the best for you.






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    PAGOW 8 Pcs Power Socket Adapter, Drill Bit for Impact Driver - Hex Head Shank Extension Tool

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    Description:

    What you get: 8 pcs black Socket Adapters : 2 piece of 1/2" drill bit, 2 piece 3/8" drill bit, 4 piece 1/4" drill bit.

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    • This 8 pcs drill adapter are made from Heat-Treated Hardened Chrome Vanadium (Cr-V) Steel, Heavy Duty material without breaking or rusting, the exterior anti-weathering coating provides extra protection from damage against elements and substances, and you can use it for a long time.
    • Includes 1/4"(Length 65mm), 3/8"(Length 65mm) and 1/2"(Length 72mm) drive impact grade adapters, each with a 1/4" hex shank/driver bits fits all quick-change drill chucks system. Small sizes and easy to carry, can be stored in a tool box.
    • This adapter set is designed to provide a securely locked in extension to your existing tool. Great for the DIY, Automotive Repairs, Household Maintenance, and most general repairs.
    • This 3 pcs drill bits is perfect for your impact driver or power drill, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool, they fits all quick change chucks as well as standard drill chucks.
    • What you get: 8 pcs black Socket Adapters : 2 piece of 1/2" drill bit, 2 piece 3/8" drill bit, 4 piece 1/4" drill bit.


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    Drixet Magnetic Bit Holder Extensions 2, 4 & 6 for Quick Change - Universal 1/4 Hex Shanks That Fits Most Power Drills - 3 Piece Set

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    Description:

    About Drixet Magnetic Bit Holder 2", 4", 6" Extensions for Quick Change - 3 Piece Set

    Three Pack:
    Drixet drill bit holders come in a pack of three(3) extension holders in 3 different sizes so you can get superior access to hard to reach screws, nuts, and fasteners. Extension lengths come in the following: 2 inch, 4 inch, and 6 inch extensions.

    High Quality:
    Drixet's Drill bit extension holder are made with a super high quality heavy duty construction to ensure maximum efficiency. The chrome finish of these drill bit holders give an added resistance to rust.

    Easy to Use:
    Very handy lengths for tough to reach spots. No excess rattling around.

    Must-have Accessory Set for Power Drills and Impact Drivers!

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    • The Drixet Magnetic Bit Holder 2", 4", 6" Extensions for Quick Change - 3 Piece Set is made with extra strong permanent magnets to hold bits securely in place ensuring you that your bits stay in place and never wobble while in use, giving you maximum control and accuracy when drilling and driving.
    • SPECS: You get 3 Pcs Magnetic Bit Holder Extensions in lengths 6 inch 4 inch & 2 inch for superior access for hard-to-reach fasteners.
    • QUALITY: Hardened tempered tool steel with chrome-finish holders. Shock-resistant tool steel for maximum durability. These bits will stay secure and never strip or break. The Heavy-duty construction allows for long life of these extensions.
    • Design: Universal 1/4" quick-change hex shanks fit all power drills, 1/4" impact drivers and hand-held drivers, allowing you to bring your bit extensions anywhere to get any job done, regardless of what type of power drill or driver is at your disposal. Can fit into any tool bag.
    • USES: This extension for quick change when drilling and driving- 1/4" Hex Shank Heavy-Duty - Screws, Nuts, Drills, Handheld Drivers, Tool Box & Construction.






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    What are the best drill bits for hardened steel