Long cobalt drill bits

Bosch CO2139 3/16 In. x 3-1/2 In. Cobalt Drill Bit

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Description:

Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. 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.

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  • Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
  • Rigid, thick web design adds stability to bit in tough applications
  • Surface hardened to penetrate tough abrasive materials
  • Available in jobber length, full shank
  • Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium













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Drill America 3/16" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

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  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907










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2 Pcs Pack High Speed Steel HSS Aircraft Extension Long Drill Bits Length 12 Inch, 135 Degree,Split Point, Drilling deep holes in metal and Steel Bright Finished (5/8 x 12 inch)

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Description:

5/8 x 12 Inch HSS M35 High Speed Steel Cobalt Aircraft Extension Drill Bits with Overall Length 12" Round Shank, Spiral Flute, 135 Degree, Right hand, Split Point, Bright Finished, drilling deep holes in metal and Steel.. Hardened high speed steel body provides additional safeguard. * Industrial grade high speed steel are available on request. * Right hand cutting direction; standard two flute design. * Aircraft Extension Drills are heavy duty Jobber Flute Length Drills with an extended overall length of 6" or 12" or 18". They are manufactured to NAS 907 drill standards and are used for drilling holes in hard to reach places. * 135 degree split point for quick start and no walk application. 118 degree point angle design for general purpose are available on request. * Black oxide finish or Bright finish; Tin Coated are available on request.. * Aircraft Extension Drills are for portable or machine drilling in mild steel, aluminum, other soft materials. Used for drill holes in hard-to-reach places. Mfr. to NAS 907-A specs. * Drill Bits Set are available on request.

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  • HSS High Speed Steel, best Material for improving performance and drilling life when cutting and drilling harder metals, such as Stainless steel, or other hard steel
  • The Bright Finished strongthen the surface by Oxiding treatment on the Cobalt Steel, to ensure the long drilling life and better drilling performance
  • The 135 Deg. Split Point to ensure the best positioning and better drilling performance
  • Round Shank Allow use with a wide variety of tool holding systems
  • 12" Overall length to ensure the best deep hole drilling in hard steel and matels.



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Drill America 7/32" x 12" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Buy long cobalt drill bits from Amazon.com

Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Buy long cobalt drill bits from Amazon.com
  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907










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Migiwata 3/8 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 5pcs - Jobber Length and Straight Shank - Extremely Heat Resistant Perfect Drilling in Stainless Steel and Cast Iron

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Description:

M35 Grade Cobalt Steel

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.

135 Degree Split Point

The flater the drill, the smaller the chip width. This means less force required to remove metal, compared with lower angles like 90 and 118. This is important on hard stuff, because your power requirements are already more than mild steel, so making the chip load less helps. It also reduces heat since less surface area is generating the cut.

Lowest Cost Per Hole Drilled

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. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled.

For Drilling Stainless Steel

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.

Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.

Not Suggested for Hardened Steel

M35 grade cobalt drill bits are NOT suitable for hardened steel, high carbon steel and heat-treated steel by the experiences of some customers, although some others said they worked well with hardened steel.

Cooling Liquid Required

Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage.

BUY WITH CONFIDENCE:

If you're not completely satisfied with the product quality, please contact us. Refund or free replacement.

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  • 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, with up to twelve times when compared with an average HSS drill bit.
  • FOR METALWORKING - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
  • SELF-CENTERING - The 135 quick-cut points are and penetrate quickly with less pressure. No center punch is needed. Will not "walk" or "wander".
  • 5PC SET - The set includes 5pcs of 3/8" diameter M35 grade cobalt steel twist drill bits, packed in a convinient and reuseable PVC case as showed in the picture.
  • SATISFACTION GURANTEED - Here at Migiwata we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.






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Drill America 1/8" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Buy long cobalt drill bits from Amazon.com
  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to National Aerospace Standard 907










Buy long cobalt drill bits from Amazon.com


Drill America 3/32" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Buy long cobalt drill bits from Amazon.com

Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Buy long cobalt drill bits from Amazon.com
  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to National Aerospace Standard 907










Buy long cobalt drill bits from Amazon.com


Drill America 7/64" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Buy long cobalt drill bits from Amazon.com

Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Buy long cobalt drill bits from Amazon.com
  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907










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DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

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Description:

The DEWALT DWA1240 14pc Pilot Point Industrial Cobalt Drill Bit Set is designed for maximum speed and life in stainless steel and other hard metals. These bits features a pilot point and split tip design that starts on contact and eliminates bit walking along for more control. Commonly used for drilling into stainless steel, drilling into angle iron, I-Beams, and other similar metals. Set includes: (2) 1/16" bit, (1) 5/64" bit, (1) 3/32" bit, (1) 7/64" bit, (2) 1/8" bit, (1) 9/64" bit, (1) 5/32" bit, (1) 3/16" bit, (1) 7/32" bit, (1) 1/4" bit, (1) 5/16" bit, (1) 3/8" bit

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  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
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Drill America 3/8" x 12" Cobalt Aircraft Extension Drill Bit, GLBCO Series

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Buy long cobalt drill bits from Amazon.com

Description:

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. Cobalt steel tools 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. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

Buy long cobalt drill bits from Amazon.com
  • Cobalt steel tools 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
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907











Buy long cobalt drill bits from Amazon.com


Long cobalt drill bits