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πŸͺš cobalt general purpose deg split drilling: cutting-edge efficiency for all drilling needs logo

πŸͺš Cobalt General Purpose Deg Split Drilling: Cutting-Edge Efficiency for All Drilling Needs Review

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Revainrating 2.5 out of 5Β Β 
RatingΒ 
2.3
πŸͺš Industrial Drill Bits, πŸ”ͺ Cutting Tools

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Description of πŸͺš Cobalt General Purpose Deg Split Drilling: Cutting-Edge Efficiency for All Drilling Needs

βœ”οΈ COBALT DRILL BIT DIMENSION:1/2"(Diameter) x 4-1/2"( Flute Length) x 6"(Overall Length). βœ”οΈ COBALT MATERIAL: HSS(M35) Cobalt Steel is the premium material with high hardness and red hardness to enable long drilling life and fast drilling performance. βœ”οΈ SURFACE TREATMENT: The Gold Oxide Ember finished surface treatment strongthen the hardness of drill bit body to ensure the long drilling life and better drilling performance. βœ”οΈ SPLIT POINT ANGLE 135 DEG.: No center punch is needed- the aggrevsive 135 deg. Split Point quick-cutting points are self- centering and penetrate quickly with less pressure. will not "walk" or"wander". βœ”οΈ APPLICATION: Best used for drilling into light-gauge metal, high-carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium.

Reviews

Global ratings 3
  • 5
    1
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    2

Type of review

Revainrating 5 out of 5

They cut through stainless steel like butter!

The price was great. Received quickly. I use them to drill holes in 18 gauge stainless steel. They work very well. I haven't found anything better!

Pros
  • Drill parts and accessories
Cons
  • unreliable

Revainrating 1 out of 5

These drill bits did a few holes in steel

I am building a metal building and having to drill many holes to attach windows to a metal frame was a challenge for me and the drill. Three drills were enough for the whole day of window installation.

Pros
  • Power & Hand Tools
Cons
  • Large and bulky

Revainrating 1 out of 5

Not suitable for stainless steel

The description states that these drill bits are good for drilling steel, stainless steel and even wear-resistant steel. We drill 304 stainless steel under 5/32" thick and after only 3 holes the tip is fully rounded. I'm sending them back. Please note: We purchased a Dewalt product and drilled over 20 holes with a drill. It looks almost new apart from a slight discoloration from heat.

Pros
  • jobber drill bit
Cons
  • weak