Top Cobalt Steel Pilot Counterbore

Hymnorq 1/2 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 2pcs, Jobber Length and Straight Shank, Extremely Heat Resistant, for Drilling in Stainless Steel and Cast Iron

  • COBALT STEEL – 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, ideal for repeated drilling in metalworking..
  • FOR METALWORKING – Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
  • SELF CENTERING – The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not “walk” or “wander”. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
  • 2PC SET – The set includes 2pcs of 1/2” diameter fractional inch size M35 grade cobalt steel twist drill bits. Total lenght: 5.98 inch.
  • working length: 4.49 inch. Manufactured to German DIN338 standard. Packed in a plastic bag and a flat paper box..
  • 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....
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Century Drill & Tool 26529 Pro Grade Cobalt Drill Set, 29 Piece, Made in The USA, for Stainless Steel and Hard Metal

  • 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" and 1/2" cobalt drill bits.
  • Century Pro Grade drills are made from 5% industrial quality M35 cobalt alloy high speed steel..
  • Cobalt is extremely heat resistant, when used and operated in power units that have a RPM speed of 1,500 or more for maximum efficiency..
  • Lasts up to 12 times longer than the average consumer-grade high speed steel drill..
  • 135 degree quick-cut point penetrates faster and will not walk or wander at the starting surface. Does not require a center punch or pilot hole..
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Hymnorq Metric 1.0-10 mm Straight Shank M35 Grade Cobalt Steel Jobber Length Twist Drill Bits Set of 19pcs for Metals, Packed in Indexed Metal Case

  • COBALT STEEL - Manufactured from M35 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..
  • SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
  • 19PC METRIC SET - The set includes 19pcs of M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7 mm, 7.5mm, 8 mm, 8.5mm, 9 mm, 9.5mm, 10 mm. Well organized in a tough metal indexed storage case for easy transport to your worksite..
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to ad....
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Hymnorq 7/16 Inch Dia. x 5.51 Inch Long M35 Cobalt Steel Twist Jobber Length Drill Bits 2PC Set, 135 Degree Split Point, Extremely Heat Resistant, for Stainless Steel and Cast Iron

  • COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to create a hardened heat-resistant alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times compared with an average HSS drill bit..
  • SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
  • 2PC 7/16 INCH FRACTIONAL BITS - The set includes 2pcs of M35 cobalt steel twist drill bits. Total length: 5.51".
  • working length: 4.06". Manufactured to German DIN338 standard. Packed in a plastic bag and a flat paper box..
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
  • 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 articles on the ....
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Drill America DEWCBR Series Qualtech High-Speed Steel Counterbore, 1/2\ Shank Diameter, 3/16\ Pilot, 5-1/8\ Length, 5/8\ Size (Pack of 1)

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
  • Round shanks allow use with a wide variety of toolholding systems.
  • Counterboring is the enlargement of a portion of a hole that has previously been formed.
  • The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.
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Bosch HSBIM9 General-Purpose 9 pc. Bi-Metal Hole Saw Kit

  • All-in-one kit – features two SpinLOCK Universal arbors, steel pilot bit and six hole saws with Progressor tooth design.
  • SpinLOCK universal arbor – fits all brands and sizes to simplify diameter changes with fast plug removal and tool-free install.
  • The pilot bit – designed to start holes in a variety of materials.
  • Progressor tooth design – hole saws feature alternating teeth size for performance, cutting faster and lasting longer in wood, metal and plastic materials.
  • Durable hole saw material – hole saws are made with 8% cobalt alloy.
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DEWALT Drill Bit, Pilot Point, Industrial Cobalt Alloy Steel, 3/8-Inch (DWA1224)

  • Drill bit has maximum speed and life in stainless steel and other hard metals.
  • Pilot point and split tip design of drill bits for wood, metal and plastic starts on contact and eliminates bit walking.
  • Heavy-duty Cobalt Alloy Steel of DEWALT drill bits delivers 4 times more life than black oxide..
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IRWIN Step Drill Bit 3/16-Inch to 7/8-Inch Cobalt Alloy Steel 3/8-Inch Shank 10234CB

  • Cobalt Alloy Steel high speed steel for extended cutting edge life makes it ideal for drilling stainless steel.
  • Drills 12 different hole sizes, from 3/16" to 7/8" by 16ths.
  • SpeedPoint tip prevents "walking," gets fast starts, and eliminates the need for pilot/starting hole.
  • Single-flute cutting edge drills true round holes with smooth, clean finish.
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McJ Tools Reloading Flash Hole Uniformer(for 0.06

  • Multi caliber floating step pilot allos for flash hole uniformity on cases from .22 up to .45.
  • The tool head is made of high cobalt steel with Titanium Nitride coating for super long lasting.
  • Deburr depth stop for consistency from case to case.
  • with 8-32 threads and an hexagonal joint shank, it works with both drill and handle.
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Lutron CW-2-WH 2-Gang White Wall Plate, Pack of 6

  • Maximum speed and life in stainless steel and other hard metals.
  • Pilot-point tip starts on contact for clean, accurate holes and reduces lock-up on breakthrough.
  • Size markings are located above the shank to prevent wearing away.
  • Industrial-strength cobalt for optimum life and durability in metal.
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Aibesy 7pcs/set Counterbore Set M3-M12 High-speed Steel 4 Flutes Straight Shank Counterbore End Mills

  • High speed steel, high quality and durable..
  • It includes 7 sizes in one counterbore set(M3, M4, M5, M6, M8, M10, M12)..
  • An essential hardware tool for industrial..
  • The counterbore set works great in counter bored hole..
  • Apply to cast iron, steel, copper, aluminum, conventional hardness of stainless steel and die steel, etc..
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Chicago Latrobe 790 Solid Carbide Spotting Drill Bit Regular Length Uncoated Bright Finish Round Shank Right-Hand Spiral Flute 120 Degree Conventional Point 1/4 Size

  • Spotting drill bit creates a pilot hole to reduce walking and improve hole accuracy.
  • Solid carbide drills produce close-tolerance holes in hard materials, and have a longer tool life at higher speeds than cobalt and high-speed steel (HSS).
  • Uncoated (bright) finish has no additional surface treatment or coating.
  • 120-degree conventional point drills a pilot hole to accurately guide a 118-degree secondary drill bit.
  • Round shank accommodates most drill chucks.
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