STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal.
STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal.
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STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal.

4.5 stars out of 33 reviews
(4.5)|
33 ratings

Key item features

  • High-Quality Material: Premium 6% cobalt steel with 69 HRC (Rockwell Hardness Scale) for superior heat, wear, and chip resistance.
  • Precision Design: Split point, 135-degree fully ground cutting edge for efficient drilling.
  • Versatile Shanks: Round shank for 1/16-7/32 sizes and 3-flat shank for 1/4-1/2 sizes.
  • Wide Application: Suitable for drilling through stainless steel, hardened steel, iron, aluminum, pipes, wood, PVC, and plastics.
  • Enhanced Performance: Capable of running two to three times faster than standard drill bits, reducing cost per hole.
  • Sharp Cutting Edge: Sufficiently sharp bit edge cuts metal into long strips of iron chips, avoiding slow grinding.
  • Comprehensive Set: Includes 17 pieces with sizes ranging from 1/16" to 1/2", covering a wide range of drilling needs.
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Current price is $29.89
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Columbus, 43215
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4.4375 stars out of 5, based on 16 seller reviews(4.4)
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STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal. $29.89

STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal.
current price $29.89

STROTON Cobalt Drill Bit Set (1/16"-1/2", 17PCS), M35 HSS Heavy Duty Drill Bits for Stainless Steel and Hard Metal.

4.5 out of 5 Stars. 33 reviews

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4.5 out of 5 stars
stars33 ratings12 reviews
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Showing 1-3 of 12 reviews

Apr 16, 2025
William
Item details
Size: 1/16in-1/2in
Sold bySTROTONDelivered byWalmart
5 out of 5 stars review

Verified Purchase

great bits

I busted 2 of the bolts holding a twin engine in a mower I was working on and I drilled both bolts out with just one bit and it's ready for more work. Best set I've ever owned.

Incentivized Review
Helpful?69MBI2MUNIAU2293519326
Mar 26, 2025
James
Item details
Size: 1/16in-1/2in
Sold bySTROTONDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Cobalt bits on metal are best!

I drilled progressive holes in my front bucket to add on teeth to the bucket. Starting with 1/4" and ending with 1/2' dur to the thickness of the metal. The cobalt bits did a great job to fininfh the final hole.

Incentivized Review
Helpful?69MBI2MUNIAU2293519326
Jan 15, 2025
Jonathan
Item details
Size: 1/16in-1/2in
Sold bySTROTONDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great bits

Works great, no broke off or run off while drilling

Incentivized Review
Helpful?69MBI2MUNIAU2293519326