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Includes – 1/16", 5/16", 3/32", 7/32", 3/16", 1/4", 3/8", 7/64", 1/8", 5/64", 5/32", 9/64", 1/2". Thick web-helix design – provides additional stability in tough applications.

Cobalt drills are effective in drilling tough, Inconel, high tensile strength materials like stainless steel, and titanium.
When all hands are on deck, hang the drill index on your belt whether you're in the shop or field. Manufactured to aerospace standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. Set contains 29 m42 cobalt drill bits sizes 1/16" - 1/2" x 1/64" increments. Gold oxide finish acts as a lubricant and provides wear resistance.

3 steps design for cutting through Stainless Steel, Aluminum, Hard Metals, Plastic. The sufficiently sharp bit edge can cut the metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.

Size - 1/16“ 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 3/16" 11/64" 13/64" 7/32" 15/64" 1/4". Multi-blade tip-design, and it cuts faster and more smoothly than the general 135° drill.






1. BOSCH
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BOSCH CO14B 14-Piece Cobalt M42 Metal Drill Bit Assorted Set
#adBOSCH #ad - Cobalt m42 drill bit – provides upgraded m42 cobalt jobber-length bits designed for durability, cast iron, titanium, high heat resistance and Hardened surface for stainless steel, light-gauge metal and aluminum.Includes – 1/16", 5/16", 3/32", 7/32", 3/16", 1/4", 3/8", 7/64", 1/8", 5/64", 5/32", 9/64", 1/2". Thick web-helix design – provides additional stability in tough applications.
More information #ad
Surface-hardened tip – penetrates tough abrasive materials. Standard bits. Enhanced m42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. High-heat resistant bits – withstand high-temperature applications for extended periods of time.Brand | BOSCH #ad |
Manufacturer | BOSCH #ad |
Part Number | CO14B |
Model | CO14B |
Warranty | Product Defects Only |
More information #ad
2. Drill America
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1/2" X 64ths, D/ACO Series, D/A29J-CO-PC 29 Piece M42 Cobalt Drill Bit Set in Round Case 1/16", Drill America
#adDrill America #ad - Round shanks allow use with a wide variety of tool holding systems. Unique round drill index combines form and function into 1 beautifully designed, easy to carry drill set. Cobalt steel provides extended tool life compared to high-speed steel drill bits, and maintains the tool's toughness and hardness in high drilling temperatures.Cobalt drills are effective in drilling tough, Inconel, high tensile strength materials like stainless steel, and titanium.
More information #ad
Effortlessly grip the set in 1 hand as you would a travel coffee mug or leave it in the cup holder of your truck while on the way to a job. When all hands are on deck, hang the drill index on your belt whether you're in the shop or field. Manufactured to aerospace standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. Set contains 29 m42 cobalt drill bits sizes 1/16" - 1/2" x 1/64" increments. Gold oxide finish acts as a lubricant and provides wear resistance.
Brand | Drill America #ad |
Manufacturer | Drill America #ad |
Height | 2 Inches |
Length | 6 Inches |
Weight | 2.2 Pounds |
Width | 4 Inches |
Part Number | D/A29J-CO-PC |
Model | D/A29J-CO-PC |
More information #ad
3. STROTON
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Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal 1mm-10mm/19pcs
#adSTROTON #ad - This cobalt drill bit is typically capable of running three to five times Faster. Despite the higher price, the cost per hole when Using Cobalt Drill Bit Will be the Lowest, Since It Can Produce So Many More Holes.3 steps design for cutting through Stainless Steel, Aluminum, Hard Metals, Plastic. The sufficiently sharp bit edge can cut the metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
More information #ad
Premium m42 8% cobalt steel, 68-70 hrc rockwell Hardness Scale, usually give the best heat, Wear and Chip Resistance and Long Tool Life.19pcs 135 degree split point drill bits includes :1mmlength:3. 4cm 1. 5mm 2mm 2. 5mm 3mm 3. 5mm 4mm 4. 5mm 5mmlength:8. 5cm 5. 5mm 6mmlength:9cm 6. 5mm 7mm 7. 5mm 8mmlength:11. 5cm 8. 5mm 9mm 9. Brand | STROTON #ad |
Manufacturer | STROTON Ltd #ad |
Part Number | M42 Cobalt-8(19pcs) |
Model | . |
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4. DIOBATO
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13 Piece,Multiple Point, DIOBATO M42 Cobalt Drill Bit Set for Metal, Cast Iron, Stainless Steel, Wood
#adDIOBATO #ad - M42 cobalt drill bit set for metal. Using unique process technology, each bit contains about 8% cobalt, which can easily handle common stainless steel materials and various light and medium metals.Size - 1/16“ 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 3/16" 11/64" 13/64" 7/32" 15/64" 1/4". Multi-blade tip-design, and it cuts faster and more smoothly than the general 135° drill.
More information #ad
Thick web-helix design, increase the pressure on the material when drilling, fast cuts with smooth chip evacuation. Applicable device - cnc machine, bench drill, precision drilling machine, medium and high power electric hand drill. Applicable materials - for stainless Steel, Cast Iron, Titanium, Light Metals and Aluminum etc.Brand | DIOBATO #ad |
Manufacturer | DIOBATO #ad |
Part Number | DIOBM42-13P |
Model | DIOBM42-13P |
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5. Drill Hog
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Drill Hog 29 Pc Super Premium Cobalt M42+ Drill Bit Set Orange Steel Case
#adDrill Hog #ad - 135 degree split Point Prevents "Walking". Lifetime Warranty. Super premium solid Cobalt M42+ Steel. 1/16" to 1/2" by 1/64ths. 3 flat sides prevents "Spinning" in the Chuck.More information #ad
Brand | Drill Hog #ad |
Manufacturer | Drill Hog #ad |
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6. Drill Hog
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Drill Hog 29 Pc Super Premium Cobalt M42+ Drill Bit Set
#adDrill Hog #ad - Tri-flat shank prevents "Spinning" in the Drill Chuck. 1/16" to 1/2" by 1/64th increments Does Not Skip any Sizes. 135 degree split Point Prevents "Walking". Super premium solid Cobalt M42+ Steel. Lifetime Warranty.More information #ad
Brand | Drill Hog #ad |
Manufacturer | Drill Hog #ad |
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7. Drill America
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1/2" X 64ths, D/ACO Series, Drill America 29 Piece m42 Cobalt Drill Bit Set 1/16"
#adDrill America #ad - 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.More information #ad
When run in a counterclockwise direction right-hand cut spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Round shanks allow use with a wide variety of toolholding systems. 29 piece drill bit set comes in a metal case.Brand | Drill America #ad |
Manufacturer | Drill America #ad |
Weight | 3.26 Pounds |
Part Number | D/A29J-CO-SET |
Model | D/A29J-CO-SET |
More information #ad
8. TopLine Cutting Tools
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Topline Drill Bit Set M42 Cobalt Fractional 1/16-1/2" 29pcs Huot Index
#adTopLine Cutting Tools #ad - Ground from m-42 cobalt Solid Blank. 1/16" to 1/2" by 64ths, 29pc set. 135 degree split point. High production Grade. Sturdy huot USA drill index.More information #ad
Brand | TopLine Cutting Tools #ad |
Manufacturer | CML Supply #ad |
Part Number | 501-133 |
Model | 501-133 |
More information #ad
9. Drill Hog
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Drill Hog 115 Pc Drill Bit Set Cobalt M42 Fractional Letter Number
#adDrill Hog #ad - Lifetime Warranty. A to z letter Size Drills. 1/16" to 1/2" fractional Sizes by 1/64ths. Super premium Cobalt M42 Steel. 1 to #60 number drills Wire Gauge Sizes.More information #ad
Brand | Drill Hog #ad |
Manufacturer | Drill Hog #ad |
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10. Drill Hog
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Drill Hog 21 Pc Cobalt M42 Junior Drill Bit Set 1/16" to 3/8"
#adDrill Hog #ad - 135 degree split Point Prevents "Walking". 21 drill bits from 1/16" to 3/8" by 1/64th Increments. Drill hog cobalt M42 Premium Steel. Tri-flat shank Prevents "Spinning" in Chuck. Lifetime Warranty.More information #ad
Brand | Drill Hog #ad |
Manufacturer | Drill Hog #ad |
More information #ad