IRWIN 3016031ZR Single Cobalt Alloy Steel High-Speed Steel Drill Bit, 31/64" x 6" $5 & More + Free Shipping w/ Prime or on $25+

alfrank

Mar 27, 2023 1:34 AM

73 Comments

Joined Dec 2015

alfrankMar 27, 2023 1:34 AM

73 Comments

1/2" is same price also!

2

Rokket

Original Poster

Pro

Deal Hunter

Mar 27, 2023 1:57 AM

53.2K Comments

Joined Jun 2011

RokketMar 27, 2023 1:57 AM

Original Poster

Pro

Deal Hunter

53.2K Comments

Quote from alfrank

:

1/2" is same price also!

So it is, thank you for posting. Reps to you for your help.

coltrane69

Mar 27, 2023 5:23 AM

1.7K Comments

Joined Feb 2007

coltrane69Mar 27, 2023 5:23 AM

1.7K Comments

Quote from dapaloo

:

seems to struggle with steel
you can buy a set of cobalt drill bits for $8.50
rather than $5 for 1

Do you have first hand experience with these particular Hanson Cobalt bits? I've never used Hanson cobalt bits before, but I have used dewalt, Bosch, and Greenfield cobalt bits and all of them eat through mild steel like nothing, especially with the right speed, pressure and cutting oil.

I really don't think you're going to find any legit cobalt drill sets for $8.50. The main brands all hover around $25-$40 for a 13 piece set. You might be able to get a harbor freight HSS or Titanium set for $8, but I doubt they'd last to long going through steel.

UpbeatKnob539

Mar 31, 2023 3:12 PM

369 Comments

Joined Mar 2019

UpbeatKnob539Mar 31, 2023 3:12 PM

369 Comments

How is the US still using measurements like 31/64 of an inch in 2023? What is it going to take for the US to catch up with the rest of the developed world and start using normal metric measurements? Easy base 10 is the way, obviously.

2

IRWIN 3016031ZR Single Cobalt Alloy Steel High-Speed Steel Drill Bit, 31/64" x 6" $5 & More + Free Shipping w/ Prime or on $25+

$5.00

$16

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