Cobalt power drill

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Cobalt Step Drill Bits

Our Cobalt Step Drill Bits are engineered to deliver up to 15X the life in stainless compared to current solutions and up to 1000 holes in mild steel. The Cobalt Step Drill Bits are recommended up to 14ga. The elongated dual-flute design also offers you the best heat management combined with the smaller steps for smoothest drilling experience and a Rapid Strike™ tip that allows for 2X faster starts in stainless. Made in the USA with global materials, these step bits have best-in-class performance in cordless drills used on low-speed in stainless steel and high speed for mild steel.

Model Number -

Step Bit Size
#1 (1/8-1/2”)
#4 (3/16-7/8”)
#9 (7/8-1-1/8”)
Sours: https://www.milwaukeetool.com/Products/Accessories/Metal-Drilling/Step-Drill-Bits/Cobalt-Step-Drill-Bits

Tips           

  • Even though cobalt drill bits are designed to bore through wood, plastics, and other softer material, we recommend that you don’t use it solely for that purpose. The strength produced by cobalt drill bits could be overkill when used on a soft material, and you may damage the drill bit if you only use it for such projects.
  • You don’t always have to buy a replacement kit every time your drill bits become blunt. Simply sharpen each tool on a bench grinder or a belt sander. You could buy an industrial sharpener for large-scale applications. Do not wear gloves or put your hands too close to the sharpening unit as they may be caught up in the sharpening device. 
  • A cobalt drill bit is a very powerful tool, and things can go wrong when using it. The tip may snap, sparks could form, and a lot more could happen. You should, therefore, remember to wear protective gear when drilling. This includes goggles, gloves, and safety shoes.

FAQs

Q: Are cobalt drill bits better than carbide drill bits?

A: Neither is better since they are used for different applications. Cobalt drill bits are an upgraded form of high-speed steel with five to eight percent of cobalt infused into the material. They are, therefore, a great option for drilling into hard metals and can be used in hand drills and drill presses. On the other hand, carbide drill bits are harder than the cobalt alternatives and are only designed to handle large-scale production drilling. They can bore through the hardest metals.

Q: Which is the best drill point angle for a drill bit?

A: 118 degrees is the standard drill point angle for almost all types of drill bits. That is the distance from the tip of the drill bit to the parallel plane where its projected on. However, most high-end cobalt drill bits maintain a 135-degree angle for enhanced speed when drilling through hard metals.

Q: Do I need to lubricate my cobalt drill bit every time I use it?

A: You should always use cutting oil or a high-quality lubricant when drilling metals. It will help reduce friction for faster and smoother drilling, and it prolongs the life of the drill bit. It also prevents heat buildup and sparks, which often happens with metal-to-metal contact. You don’t need to use a lubricant when drilling through wood or plastic 

Final Thoughts

If you want a cobalt drill bit set that comes in a convenient carrying container with a size index, resists heat buildup, and includes a lifetime warranty, then consider our top pick, the Drill America Cobalt Drill Bit Set.

However, if you want a simple and affordable cobalt drill set for your DIY projects, then consider the DEWALT Cobalt Drill Bit Set.

Sours: https://www.thedrive.com/reviews/29809/best-cobalt-drill-bits
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Cobalt Jobber Drills

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Heavy Duty, Fractional Sizes

Item #:705C-FRACTIONS 

  • Drill High Tensile Materials Like Stainless Steel Using A Power Drill, Drill Press, Or CNC Machine
  • Heat Resistant Premium M42 Cobalt High Speed Steel Maintains Sharp Cutting At High Temperatures
  • Self-Centering 135° Split Point For Precision Drilling- Drill Will Not Walk
  • Straight Shank
  • Cobalt Drills Are Brittle And Can Break If Operator Forces Tool
See All Sizes

Twist Drill TypesTwist Drill Operating GuidelinesTwist Drill Decimal Equivalency Chart

Warning: Cancer & Reproductive Harm. See P65warnings.ca.gov for more info.
Cutting tools may shatter. Always wear appropriate safety equipment.

Made In USA

PT-DRILLS

Performance Level

Heavy Duty

Drilling Application

Stainless Steel, High-Strength Alloys

Point Style

135 Degree Split Point

Sours: https://www.championcuttingtool.com/products/!ut/p/z0/04_Sj9CPykssy0xPLMnMz0vMAfIjo8zi3T28zTy8nA383c2CjQwCLTxCjb3NggzczYz1C7IdFQFPdtyl/
Cobalt step drill bits
5 PIECE COBALT LEFT HAND DRILL SET | Matco ToolsList: $68.95
(0)5 PIECE COBALT LEFT HAND DRILL SET

DMCLM5A

5 cobalt left-hand drill bits for drilling holes and extracting fasteners without turning the fastener tighter.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest hardened fasteners...View Details

21 PIECE COBALT DRILL BIT SET | Matco ToolsList: $176.95
(0)21 PIECE COBALT DRILL BIT SET

DMC21A

Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners.135° split point design for easier hole starting, faster cutting and longer edge life...View Details

8 PIECE LEFT HAND DRILL BIT SET | Matco ToolsList: $122.95
(3)8 PIECE LEFT HAND DRILL BIT SET

DM8LA

Left hand drill bits for drilling into and extracting damaged fasteners without threading the fastener tighter.Mechanic's length for tighter access and a more rigid design that resists flex and fracturing.Includes sizes 5/64", 7/64", 1/8", 5/32", 3/16", 1/4", 5/16", and 3/8"...View Details

29 PIECE COBALT DRILL BIT SET | Matco ToolsList: $374.95
(2)29 PIECE COBALT DRILL BIT SET

DMC29A

29 cobalt drill bits 1/16" through 1/2" in 64ths.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

13 PIECE COBALT DRILL SET | Matco ToolsList: $96.95
(1)13 PIECE COBALT DRILL SET

DMC13A

13 cobalt drill bits 1/16" through 1/4" in 64ths.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

27/64" COBALT DRILL BIT | Matco ToolsList: $41.95
(0)27/64" COBALT DRILL BIT

HDC27A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

1/2" COBALT DRILL BIT | Matco ToolsList: $49.95
(0)1/2" COBALT DRILL BIT

HDC32A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

19/64" COBALT DRILL BIT | Matco ToolsList: $17.95
(0)19/64" COBALT DRILL BIT

HDC19A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

1/8" COBALT DRILL BIT | Matco ToolsList: $3.95
(0)1/8" COBALT DRILL BIT

HDC8A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

15/64" COBALT DRILL BIT | Matco ToolsList: $9.95
(0)15/64" COBALT DRILL BIT

HDC15A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

11/64" COBALT DRILL BIT | Matco ToolsList: $6.50
(0)11/64" COBALT DRILL BIT

HDC11A

Individual drill bit.Made from M42 8% cobalt with superior hardness for the highest possible heat and wear resistance.Suitable for the toughest high alloy steels, stainless and fasteners...View Details

3/8" LEFT HAND TWIST DRILL BIT  | Matco ToolsList: $34.95
(0)3/8" LEFT HAND TWIST DRILL BIT 

HDL24A

Left hand drill bit for drilling into and extracting damaged fasteners without threading the fastener tighter.Mechanic's length for tighter access and a more rigid design that resists flex and fracturing.For use with a reversible drill...View Details

7/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT | Matco ToolsList: $3.95
(0)7/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT

DBCHS7

Matco’s exclusive Hyper-Step tip design that cuts 45% faster and stays sharp up to 4X longer.Cobalt drill material for use on even the toughest jobs like stainless, Grade 8 fasteners, hardened alloys and titanium.Mechanic’s length size for increased drill bit rigidity and improved tight space access...View Details

3/8" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT | Matco ToolsList: $43.95
(0)3/8" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT

DBCHS24

Matco’s exclusive Hyper-Step tip design that cuts 45% faster and stays sharp up to 4X longer.Cobalt drill material for use on even the toughest jobs like stainless, Grade 8 fasteners, hardened alloys and titanium.Mechanic’s length size for increased drill bit rigidity and improved tight space access...View Details

19/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT | Matco ToolsList: $24.95
(0)19/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT

DBCHS19

Matco’s exclusive Hyper-Step tip design that cuts 45% faster and stays sharp up to 4X longer.Cobalt drill material for use on even the toughest jobs like stainless, Grade 8 fasteners, hardened alloys and titanium.Mechanic’s length size for increased drill bit rigidity and improved tight space access...View Details

23/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT | Matco ToolsList: $36.95
(0)23/64" COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT

DBCHS23

Matco’s exclusive Hyper-Step tip design that cuts 45% faster and stays sharp up to 4X longer.Cobalt drill material for use on even the toughest jobs like stainless, grade 8 fasteners, hardened alloys and titanium.Mechanic’s length size for increased drill bit rigidity and improved tight space access...View Details

Sours: https://www.matcotools.com/catalog/power-tools/accessories/drill-bits/best-drill-bits/cobalt-drill-bits/

Drill cobalt power

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