Shopping Cart

Your cart is empty.

Your cart is empty.

Cobalt Drill Bit 1/2' Twist Drill Bits, M35 High Speed Steel Jobber Length Drill Bit, 135 Degree Tip for Hard Metal, Stainless Steel, Cast Iron with Index Storage Case, Pack of 5 pcs

Free shipping on orders over $29.99

$32.29

$ 15 .99 $15.99

In Stock

1.Size:1/2 In(5pcs)


About this item

  • 【1/2" Cobalt Drill Bits】5pcs - 1/2" Metal Drill Bits. This Drill Bit fits the majority of power drill currently on the market and come with a Index Storage Case for easy storage and organization.
  • 【M35 Cobalt Drill Bit】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, The drill bits are hardened and polished for improved sharpness and precise cutting without wobbling, wear-resistance and durability. This improves work efficiency.
  • 【135° Split Point & Fully Ground Process】135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch positioning guide is required. Fully ground spiral groove design clears particles quickly, decreases friction and heat for a more efficient drilling performance.
  • 【Multiple Application】Suitable for cutting through Hard Metal such as Stainless Steel, hardened 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.(Note: Hardened steel needs to be below HRC38°)
  • 【Quality commitment】If you are not fully satisfied for any reason, Please contact us for 100% refund or replacement. Have any questions, Please feel free to contact us and we will be happy to assist you.



Product Description

ZNXIMER Cobalt Drill Bit, Twist Drill Bits
ZNXIMER Cobalt Drill Bit, Twist Drill Bits
Cobalt Drill Bit, Twist Drill Bits
Cobalt Drill Bit, Twist Drill Bits

Pedro Garcia
Reviewed in the United States on February 28, 2025
10/10
Mike13
Reviewed in the United States on February 22, 2025
I bought these because I had to drill 51 holes in 1/4" steel beams to bolt together. These bits did the job , drilled all the holes and it was still sharp.
Joy Mccormick
Reviewed in the United States on January 6, 2025
I broke 3 bits working on a project and thought I would give these a try. Drilling 1/2" holes in a Ford Super Duty frame to mount things. I bought 5 in case I needed them and only needed one to do the job. They cut well. Used as one with low speed and cutting oil.
K&R
Reviewed in the United States on August 26, 2024
As advertised, but a little shorter than I'd like them to be.
William R.
Reviewed in the United States on November 7, 2024
Predrilling holes in Oak before screwing boards in a barn. One drill bit used about 500 times.
Bill V Pace
Reviewed in the United States on November 21, 2024
work great on mild steel
Rollin Coggan
Reviewed in the United States on October 20, 2024
Good For Hard metals and at a good price
Conrad
Reviewed in the United States on January 16, 2024
Worked well drilling throught stainless steel (after drilling a pilot hole). Number of holes per drill was not a lot but none broke and the material was pretty hard. Satisfied with performance and the can be sharpened.
Recommended Products

$129.99

$ 60 .99 $60.99

4.6
Select Option