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Cobalt Drill Bit 17/32 Inch High Speed Steel M35 Reduced Shank Twist Drill Bit for Metal, Cast Iron, Stainless Steel, Alloy, Non-Ferrous Etc.

4.4 (10) Write Review
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$13.49

$ 6 .99 $6.99

In Stock

1.Size:7/8


About this item

  • Professional Drill Bits - Made of 5% Cobalt High Speed Steel with heat treament and hardness up to HRC 67, Ideal for drilling in cast iron, stainless steel, hard metal, copper and so on
  • Superior Performance - Provides upgraded M35 Cobalt drill bits for high-temperature applications for extended periods of time and delivers 5x life vs. Standard bits
  • Drilling a Precise Hole - 135 degree pilot point tip design to help reduce walking, Straight round shank design with better concentricity for precise drilling results
  • Efficient - Tapered web helix design provides additional stability in tough applications, Large spiral flute facilitate the export of metal chips remove for fast drilling results
  • Instructions for use: Due to the large diameter of the drill, it is need to pre-drill small hole for best results. Drill bit is a consumable item, it will not be sharp enough with prolonged use, you can be to sharped it for continue use


Product Description

reduced shank drill bits

Meccion Cobalt High Speed Steel Drill Bit

The Cobalt drill bits are engineered and given the capacity to cut through most types of metal, including alloy steel, stainless steel and cast iron and even hard plastics and woods.

These hardened drill bits are made of high speed steel M35, which makes them strong and give them the ability to withstand long time use.

reduced shank drill bit

Attention:

1. You need to control the RPM when drilling.

2. Do not hit the drill bit, otherwise it will be break.

3. Fixed well to avoid the drill bit breaking due to vibration.

4. If the chip remove is abnormal, please stop drilling immediately and continue after remove.

5. When drilling for a long time, please use oil for cooling to prolong the service life.

6. The drill bit is a consumable item, and it will not be sharp enough with prolonged use, and it can be continue to used by sharping.

7. Due to the large diameter of the drill, it is need to pre-drill the holes with a smaller diameter drill and then reaming the holes with a larger diameter drill for best results.

Product Features:

  • 135 Degree Point Angle
  • 5% cobalt Contain
  • Hardness up to HRC67
  • Multi-process precision ground
  • Fast drilling and chip removal
  • Create clean and precise holes
  • Working on most hard material
  • Straight round shank compatible with most drill devices
Multi- fuction reduced shank drill bit
M35 Reduced Shank Twist Drill Bit

AMT
Reviewed in Canada on March 7, 2025
I was disappointed to see such a small shank on this bit. I guess I assumed the reduced shank would be 1/2" as quality bits always are. The bit I received has a 10 mm shank welded to the cobalt alloy drill. It bent the first time the bit stalled in the bore. I managed to enlarge 12 holes in carbon steel so was able to finish the project, but the bit is junk now. Was expecting to be able to keep the bit for future projects but It's disposable.
Jordan
Reviewed in Canada on March 5, 2025
Meccion Cobalt Drill Bit 9/16 Inch High-Speed Steel M35comes in its own plastic storage case. Fast shipping and the correct size.
THOMAS POETA
Reviewed in the United States on March 12, 2025
Wonderful drill bit
Tina Brown
Reviewed in the United States on March 1, 2025
Did the job, exact size I needed. Was drilling holes for 1/2” pvc. Wanted the fit snug and tight. Perfect fit.
Nicholas Smith
Reviewed in the United States on February 21, 2025
Excellent quality
LEANN SPROW
Reviewed in the United States on February 21, 2025
Worked great
Linda
Reviewed in the United States on February 21, 2025
Exactly as advertised
Michael LeBlanc
Reviewed in the United States on February 19, 2025
Purchased a 43/64" drill bit. The shank size was 10mm, that was disappointing. Standard shank diameter for these drills is 1/2". I was able to grind down the back end of the drill to 1/2" diameter and use it for the job I had to do. The drilling end of the tool worked as expected with no problem drilling thru 303 stainless parts 1.560" deep. If the shank was 1/2" diameter it would get 5 stars. The description of the tool should mention the shank diameter to avoid this problem. I noticed on the description photos that in one photo you can see there is varying diameter shanks.
Charlie
Reviewed in the United States on January 30, 2025
Anyone purchasing this drill bit should know, the amount of true HSS with cobalt is only about 1-1/2's of the the drill. If a person looks very closely you can see the weld between the shank and the HSS. That said, the drill bit will perform very well as long as you clear chips and use proper lubrication in drilling the hole. Don't expect to sharpen this drill a large number of times.
Customer
Reviewed in the United States on January 18, 2025
what i wanted