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HARFINGTON 4pcs M35 High Speed Steel Cobalt Twist Drill Bit 1mm/0.04' Dia with Quick Change 1/4' Hex Shank Jobber Drill Bit for Metal, Steel, Copper, Aluminum, Zinc Alloy

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$6.49

$ 2 .99 $2.99

In Stock

1.Size:3mm


About this item

  • Size - Drill Diameter: 1mm / 0.04-inch; Drill Bit Length: 12mm / 0.47-inch; Shank Size: 1/4 Inch(6.3mm) Hex; Shank Length: 34mm / 1.34-inch; Total Length: 60mm / 2.36-inch
  • Material - The hex drill bit is made of M35 cobalt high speed steel with sharp edge. High-temperature heat treatment makes the metal drill bit has higher hardness, better wear resistance and corrosion resistance, and longer service life than ordinary drills.
  • Feature - 1/4 " hex shank, which can quickly replace the drill bit. The fully ground spiral groove design can quickly remove debris, reduce friction and heat, and drill faster. The 135 ° straight shank split point reduces walking on the working face, making drilling accurate and easy.
  • Application - Hex twist drill bits are used for applications such as DIY projects, and home maintenance. Suitable for stainless steel, copper, aluminum, zinc alloy, cast iron, wood and plastic.
  • Note - Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage.


1. The hex drill bit is made of M35 cobalt high speed steel with sharp edge. High-temperature heat treatment makes the metal drill bit has higher hardness, better wear resistance and corrosion resistance, and longer service life than ordinary drills.
2. 1/4 " hex shank, which can quickly replace the drill bit, eliminates the frustration of the handle rotation on the chuck, and makes it easier to quickly lock to the chuck. It is suitable for most electric hand drills and drilling machines.
3. The fully ground spiral groove design can quickly remove debris, reduce friction and heat, and drill faster. The 135 ° straight shank split point reduces walking on the working face, making drilling accurate and easy.
4. Hex twist drill bits are used for applications such as DIY projects, and home maintenance. Suitable for steel, copper, aluminum, zinc alloy, cast iron, wood and plastic.
5. Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage.


Pedro Garcia
Reviewed in the United States on March 21, 2025
10/10
KT618
Reviewed in the United States on April 6, 2025
Very good quality. Drill thru a thick aluminum smoothly.
Tammy
Reviewed in the United States on April 15, 2025
These were just what my husband needed to drill out bullets.
Gary Eskelson
Reviewed in the United States on April 13, 2025
cobalt is the best!
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