🔧 Drill Your Way to Success!
The Drill America DMOD31 #31 Solid Carbide Drill Bit is designed for professionals seeking durability and efficiency. With its solid carbide construction, this drill bit offers exceptional tool life and cutting speeds, making it ideal for a wide range of applications. Its round shank allows compatibility with various toolholding systems, while the spiral flutes facilitate effective chip evacuation. Manufactured to National Aerospace Standard 907, this drill bit is a reliable choice for precision drilling.
J**.
These things will drill the hardest Steel, I kid you not!
I was trying to extract a broken bolt out of a 360 Chrysler head, that I had snapped off, I snapped the extractor off in the bolt as well, I purchased these drills to drill it out, it took me 3 minutes and I had a perfect hole to tap.. what a lifesaver!
S**
No cheap but necessary
I had to drill though hard material and this bit was required. It got the job done.
D**G
make holes, bur Crack to easy
working perfect, but easy broke it
C**K
Easily Drilled Hardened Steel
I had titanium and cobalt drills that were not working. I ordered this carbide bit and drilled the hole I needed in 5-10 minutes.
R**N
Impressed
Bought this drill in desperation to get a single part done that requires 1400~ .125 diameter holes .500 deep in 6061 Aluminum. Tried the Kennametal GoDrill and could only get around 2000~ holes before failure. Put one of theses drill in and I’ve drilled 22,500~ holes so far and it’s still going strong. Running at 6000 RPM with a full retract pecking cycle. Pecking depth of .055 and federate of 35 IPM. Definitely worth the money!Update 3/23/23: I’ve drilled 51,000 holes so far (2,125 FEET of Aluminum) on the same drill and finished the job. Best 16 bucks I’ve ever spent.
A**R
It's gonna break
Don't use it freehand, or it will snap off.
R**B
This is a great bit. Cut through a hardened steel shifter handle no problem.
Ruined 2 different cobalt bits before buying this one. Cut through hardened steel easily. Will definitely buy again if and when needed.
A**R
Hard drill bit
This drilled right through a hardend easy out.worked great.
A**R
Cuts nice, but definitely brittle
Nice bit, cuts well but really truly brittle.I figured everyone else breaking these is doing it wrong so I figured it would give it a shot for 1/4” stainless.You truly need a perfect, vibration free vise and are drilling perfectly in line.It was going great till one hole was slightly imperceptibly out of line. Violently shattered the bit. Going to switch to something more flexible for now
T**R
Tip Broke off after first use, lubricated and at moderate speed, cutting stainless steel.
Not durable at all. Tip Broke off after first use, lubricated and at moderate speed, cutting stainless steel. Unsatisfactory.
R**S
Excellent
Excellent as expected.
R**O
Broke right away in the first hole. Too brittle
Avoid
T**L
do not buy
product broke/chiped after 2 holes, cobalt drill bit in same applications lasted 30 holes before became dull
Trustpilot
4 days ago
2 weeks ago