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Utoolmart 7 3Mm Twist HSS 4241 Aluminum Review

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
🪚 Industrial Drill Bits, 🔪 Cutting Tools

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Description of Utoolmart 7 3Mm Twist HSS 4241 Aluminum

【Dimension】- Bit Diameter: 7.3mm / 0.29-inch; Shank Diameter: 7.3mm / 0.29-inch; Hardness (HRC): 62-63. 【Material】- Twist Drill is made of high speed steel, high speed steel construction is designed for durability and extended tool life. 【Feature】 - Nitrogen Oxidation and Heat Treatment can increase the hardness and corrosion resistant of twist drill bit. 【Application】- Perfect for stainless steel, copper, aluminum alloy, as well suit for wood, plastic. 【Special Design】- Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.

Reviews

Global ratings 2
  • 5
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  • 4
    0
  • 3
    1
  • 2
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  • 1
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Type of review

Revainrating 3 out of 5

Not Impressed with Industrial Drill Bits

As a hesitant buyer I decided to give these industrial drill bits a try .As my tests showed, they had poor durability and were not suitable for heavy-duty use. While the price was affordable, the quality was lacking. The only pro is their compatibility with aluminum, but thats not enough to justify the purchase. Overall, i would not recommend these Industrial and Scientific Cutting Tools..

Pros
  • Sharp and precise twist design enhances accuracy in drilling.
Cons
  • The small size limits its effectiveness on thicker or harder materials.

Revainrating 5 out of 5

VW Beetle Hinge Pin Drill Bit

The second large door hinge pin for early VW Beetles (and possibly buses) is .321". The drill bit diameter is 8.2mm, making it the perfect choice for resizing a worn buttonhole. accepting an oversized pin on an early failure (before 67) Tested and verified.

Pros
  • Twist Drill Bit
Cons
  • Not as thick as other picks