Top 9 Cobalt DRILL Bit Set 1/2 – Jobber Drill Bits

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BOSCH CO14B 14 Pc. Cobalt M42 Drill Bit Set

BOSCH #ad - Thick web-helix design – provides additional stability in tough applications. 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. Standard bits. Surface-hardened tip – penetrates tough abrasive materials. 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.
BrandBOSCH #ad
ManufacturerBosch #ad
Part NumberCO14B
WarrantyProduct Defects Only

2. Drill America


DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case 1/16", DWDCO Series, Drill America, 1/2" X 64ths

Drill America #ad - Gold oxide finish lubricates the drill bit and provides wear resistance. Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials. Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments. Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging. Meets anSI specifications.
BrandDrill America #ad
ManufacturerDrill America #ad
Weight2.2 Pounds
Part NumberDWD29J-CO-PC



2 Pack, POWERTEC QDB2012 Cobalt Drill Bit 1/2-Inch | 135 Degree Drill Bit Set

POWERTEC #ad - High utility: excels in metalworking applications when drilling in high-tensile strength materials, tip can be sharpened to ensure peak-performance readiness at all times, and works in both keyed and key-less drill chucks.

Includes: 1/2-inch cobalt Jobber Drill Bit Set 2 piece. Self centering: 135 degree split point drill bits penetrate quicker with less pressure needed – minimizing bit walking wandering while ensuring a crisp, centered drill hole that doesn’t require a center punch. Premium quality: these m35 cobalt drill bits are made with the finest high speed steel ideal for high abrasive, optimal heat treatment, and wear resistance for long-term durability. Applications: cobalt drill bit for metal, nickel alloy, stainless steel, cast iron and softer material.
ManufacturerPOWERTEC #ad
Height0.75 Inches
Length6.75 Inches
Width1.75 Inches
Part NumberQDB2012

4. Drill America


D/A29J-CO-PC 29 Piece M42 Cobalt Drill Bit Set in Round Case 1/16", 1/2" X 64ths, D/ACO Series, Drill America

Drill America #ad - Cobalt drills are effective in drilling tough, Inconel, high tensile strength materials like stainless steel, and titanium. Gold oxide finish acts as a lubricant and provides wear resistance. 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.

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. When all hands are on deck, hang the drill index on your belt whether you're in the shop or field.

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. 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.
BrandDrill America #ad
ManufacturerDrill America #ad
Height2 Inches
Length6 Inches
Weight2.2 Pounds
Width4 Inches
Part NumberD/A29J-CO-PC



1” by 1/16th Increment, M2 High Speed Steel, EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, 135-Degree Split Point | SAE Inch Size 9/16”

EFFICERE #ad - 1/2 inch reduced shank with tri-flatted end locks onto 3-jaw power tools chuck more securely and eliminates slips. Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish.

Set includes 8 pieces 6” long silver & deming drill bits in a heavy duty aluminum storage case for easy carrying and organization: 9/16”, 11/16”, 13/16”, 5/8”, 3/4”, 7/8”, 15/16”, 1”. Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, stainless, copper, aluminum, plastic, sheet metals and many other types of materials.135° split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling.
Part NumberDL-001



29pcs HSS Jobber Length Cobalt Drill Bits Set 1/16", 1/2" in Metal Case

OXTUL #ad - Hardness: 5% cobalt drill bits’ Rock wall Hardness Level HRC 65-66. Size:1/16", 3/32", 11/32", 21/64", 7/32", 3/16", 7/16", 15/32", 27/64", 19/64", 5/16", 17/64", 13/64", 31/64", 9/32", 5/64", 11/64", 15/64", 25/64", 5/32", 1/4", 1/8", 9/64", 23/64", 7/64", 13/32", 29/64", 3/8", 1/2".

Professional & diy use: for use on metal, wood & plastics, Stainless Steel, Not For Use On Concrete / Masonry. Perfect match for workshop or service vehicles. Cobalt drill bits: classic 5% cobalt M35 High Speed Steel construction with Titanium Coating for proven capability and durability. 135 tip & twist design: increases cutting speed with self-centering and prevents walking, clears chips and particles faster.
BrandOXTUL #ad
ManufacturerOXTUL #ad

7. Lichamp


Lichamp 29PCS HSS Cobalt Drill Bits Set 1/16" to 1/2" with Three Flute for Hard Metal, Hardened Stainless Steel and Cast Iron

Lichamp #ad - Multiple application - ideal for drilling in heavy-duty tough metal, including hard abrasive alloy metal, hardened stainless steel or cast iron. 29pcs drill bit set - metal index case with size chart for easy bit access and identification.

4x lifespan material - made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100 degreeF. Includes drill bit sizes 1/16-inch to 1/2-inch in 1/64-inch increments. Smoothly drilling - 135-degree split point tip & twist design increases cutting speed with self-centering and prevents skating starts or walking. Unique 3x flute design - lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling experience.
BrandLichamp #ad
ManufacturerLichamp #ad
Part NumberCDB-B02900



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

HYMNORQ #ad - Not for hardened steel / high carbon steel. In most cases, including a RPM chart for several common metals, our customers would get a much better result with these tips. Total lenght: 5. 98 inch; working length: 4. 49 inch. Self centering - the 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure.

For metalworking - particularly successful in cutting through hard metalshardness less than HRC38° such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Downloadable user guide - we've summed up some tips of drilling metals, based on our reviews and some articles on the internet. 2pc set - the set includes 2pcs of 1/2” diameter fractional inch size m35 grade cobalt steel twist drill bits.

Packed in a plastic bag and a flat paper box. Welcome to download. Manufactured to German DIN338 standard. Cobalt steel - manufactured from m35 grade cobalt steel, measuring Rockwell hardness up to 67, with molybdenum and cobalt added to creates a hardened alloy, for much faster cutting and extra longer life span, ideal for repeated drilling in metalworking. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. The bits will not "walk" or "wander".
BrandHYMNORQ #ad
ManufacturerHymnorq #ad
Weight0.27 Pounds
Part Number43398-39224

9. Drill Hog


21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2" by 32nds DRILL HOG Lifetime Warranty

Drill Hog #ad - 1/16 to 1/2" by 1/32nds includes Steel Case with Pop Up Tiers. Solid cobalt M42 Steel. 135 degree split Point Prevents "walking". Lifetime Warranty. Tri flat shank - 3 flat sides on Shank Prevents "Spin" in the Chuck.
BrandDrill Hog #ad
ManufacturerDrill Hog #ad
Weight1 Pounds
Part Number21M42GB