Reviews Cobalt Drill Bits

5mm Cobalt Drill Bit Set, M35 Twist HSS Drill Bits Straight Shank, 5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron

【10PCS 5mm Cobalt Drill Bits】10pcs -(Dia 5mm) x (Length 86mm) metal drill bits. This drill fits most power drills on the market today and comes with a portable plastic case for easy storage and organization..
【M35 Cobalt High Speed Steel】Made of M35 Cobalt Steel, Cobalt is added to form a hardened alloy, measuring Rockwell hardness up to 67, faster cutting speed, longer service life, up to twelve times more drill bits compared to ordinary high speed steel. HSS bit set, harder than the 4241 HSS used in other similar bit sets. These bits also contain 5% cobalt for improved wear resistance and durability..
【Full Grinding Process and 135° Split Point】Fully ground helical flute design removes particles quickly, reducing friction and heat for faster, cooler drilling performance. The 135° straight shank split point prevents walking, making drilling more precise and faster..
【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling..
【Quality Service】If you have any questions about ....

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ACROTOL 26 Pieces Bolt Extractor Set, Spiral Screw Extractor Set and Drill Bits, Extraction Socket Set for Removing Damaged, Rusted, Rounded Bolts, Nuts and Screws

[Specifications] 26 PCS Screw&Bolt Extractors/Drill Bit Set includes 6 easy out style spiral flute extractors, 13 PCS bolt&nut extractors, 1 PC 1/4" hex adapter and 6 PCS drill bits..
[Size] Nut&Bolt Extractor Size: 1/4inch, 5/16inch (8mm), 3/8 inch, 10mm, 7/16 inch (11mm), 12mm, 1/2inch, 13mm, 9/16inch (14mm), 5/8 inch (16mm), 17mm, 11/16 inch, 3/4 inch (19mm), included 3/8"-1/4" hex adapter. Spiral Flute Extractors Size: 1#, 2#, 3#, 4#, 5#, 6#. Drill Bits Size: 3/32", 1/8", 5/32", 1/4", 9/32", 3/8"..
[Material] Every screw & bolt extractor is made from high hardness chrome-molybdenum steel, the cobalt drill bit is made from HHS..
[Note] Cobalt drill bits should not used for stainless steel. The bolt extractor with unique plum-shaped internal thread design provides excellent torque and can be used to rotate fasteners with deep bolts..
[Function] Spiral flute extractors are perfect for common fasteners, the bolt extractors are for freeing partly-exposed fasteners. The kit also includes right hand cobalt drill bits for fasteners, which can be used to help drill these fasteners..

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XLCMSY Cobalt Drill Bit Set, M35 HSS Metric Straight Shank Twist Drill Heat Resistant Metal Drill Bits for Hard Metal, Stainless Steel, Hardened Steel, Cast Iron and Wood, 1.5-6.5mm (13 Pcs)

【Heat Resistant】 This metric straight shank twist drill set is made of 5% cobalt high speed steel, adding molybdenum and cobalt to form a hardened alloy with a Rockwell hardness of 67, It is super heat resistant and wear resistance can cut hard metals quickly, suitable for drilling high hardness materials, up to 10 times life than ordinary HSS drill bits..
【Safe & Eco-friendly】 High speed steel with 5% cobalt, durable, safe and eco-friendly, providing longer tool life and reducing environmental pollution, It is a very practical and user-friendly drill bit for cutting through hardened material, golden surface treatment holds up lubricant better for smoother drilling..
【Lightweight & Durable】 Designed with a 135 degree split point, these metric drill bits are very lightweight, eliminating the need for a center punch, making cutting faster and less powerful, preventing walking and cutting stainless steel more precisely, thanks to its precision grinding inclined blade design, each bit ensures fast drilling with excellent chip removal..
【Multiple Sizes & Widely Used】The metal drill bits set for steel ....

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M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron

✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times..
✅【19PCS METRIC DIRLL BITS 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. Organized in a sturdy plastic storage case for easy transport to your workplace..
✅【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement..
✅【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling..
✅【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact WildBossy..

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1/8 Inch Cobalt Drill Bits - Set of 10 Pcs, BAIDETS M35 High Speed Steel Jobber Drill Bits, Twist Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron, Plastic and Wood

1/8" drill bits for metal is made of M35 cobalt high-speed steel, containing 5% cobalt, which increases wear resistance and durability, and enhances its use efficiency.
135°Quick cut flow point, precise positioning, lower pressure, fast penetration. Equipped with a straight shank to prevent walking, making drilling more precise and fast.
Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.
Jobber drill bits are perfect for drilling various materials, such as stainless steel, copper, cast iron, galvanized pipe, aluminum alloy, wood and other soft metals. Not suitable for glass, stone or ceramic materials.
1/8" Cobalt Drill Bits：10Pcs - 1/8" drill bits(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm). This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY ,household maintenance and repair.

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Sabre Tools 5/16 Inch Cobalt Drill Bits – 5pcs Drill Bits for Metal, M35 Cobalt Metal Drill Bit Set, Pilot Point Tip – Heavy-Duty Drill Bits for Steel, Hard Metal, Cast Iron (5/16" x 4-1/2")

What You Get: This drill bit set for metal includes 5 – 5/16 Inch x 4-1/2 Inch bits of the same size..
A Must in Your Tool Box: This cobalt drill bit set is designed to surpass your expectations in terms of durability and performance, ensuring fast and easy penetration through hard metals..
Heavy-Duty Material: Our drill bits for hardened steel feature a heavy-duty construction made with M35 cobalt, which has excellent durability and superior resistance against abrasion and high heat..
Pilot Point Tip: These cobalt drill bits feature a pilot point tip that prevents slipping and can help increase drilling speed while ensuring smooth and easy penetration through hard metals..
Wide Range of Applications: Our cobalt drill bits for hardened steel are suitable for hard metals, stainless steel, cast iron, steel, titanium alloy, hard plastics and more, and a wide range of applications such as repair, construction, or woodworking..

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AMOOLO 3/16' Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【10Pcs 3/16" Cobalt Drill Bits】10Pcs - 3/16”(Dia 4.76mm) x2-5/16”(Flute Length 58.74mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization..
【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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AMOOLO 1/8' Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【10Pcs 1/8" Cobalt Drill Bits】10Pcs - 1/8”(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization..
【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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VALYRIANTOOL 1/8″ Cobalt Drill Bits(20PCS), M35 HSSCO High Speed Steel Double Ends Stubby Body Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【20PCS 1/8″ Cobalt Drill Bits】20PCS – 1/8″(Drilling Diameter) x5/8″(Flute Length)x2″(Overall Length) Metal Drill Bits. This drill bit fits the majority of power drill currently on the market..
【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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3/8 Inch Cobalt Drill Bits(5Pcs), HPHOPE M35 HSS Metal Twist Drill Bits Set, Jobber Drill Bits Length and Straight Shank, Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron

M35 COBALT HIGH SPEED STEEL: 3/8" drill bits for metal made from M35 Cobalt High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses..
135° SPLIT POINT: 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank allows for firmly holding and accurate centering and makes drilling precise and faster..
FULLY GROUND PROCESS: Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance..
PROFESSIONAL & WIDELY USE: Perfectly Suitable for drilling holes as Stainless Steel, Copper, Cast Iron, Galvanized Pipe, Aluminum Alloy, Wood and Other Softer Metals. Not for Glass or Ceramic Materials..
EASY USE & STORAGE: The set includes 5Pcs 3/8" Cobalt Drill Bits, This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY, household maintenance and repair..

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MACXCOIP Cobalt Drill Bit Set, 115Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box

[Various Sizes] 115 sets of drill bits include 29pcs Fractional Size:1/16” to 1/2” in 1/64th increments.
[M35 Cobalt Drill Bit] The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc..
[Quick and Efficient] The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal..
[HSS Drill Bit Set] HSS cobalt drill bit set for hardened steel with excellent cutting performance. 115 sets of drill bits for long term use. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling..
[Easy Storage] The drill set includes drill holders with size indexes and is packaged in a small, strong package for easy storage and sorting. If you have any questions, please feel free to contact us and we will be happy to help you....

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