SA-5 5pcs Tungsten Carbide Burrs Cylinder Shape Double Cut Rotary Burr File(1/2” cutter Dia X 1”Cutter Length) with 1/4'' Shank dia,Pack of 5

This burr grinder worked great.

I didn't expect this to work as well as it did. I was fabricating 3/16" angle iron and it cut through it with ease on my air side grinder. No signs of wear after 15 or so minutes of cutting

I wasn't sure if this tool would do the job but it worked like a charm. I had to enlarge a hole in my granite counter top and my metal sink basin in order to install a new faucet. This bit pulverized both with no visible wear to the tool itself. This bit is outstanding and I would highly recommend.

Works wonderful,

We used this bit to cut into aluminum on an air tool, it bites right through it with little chatter. It cuts through it like butter and does a quick job.

I am a Locksmith and I absolutely love these. I deal with all sorts of metal doors and they have done an incredible job.

Door striker plate and Dead bolt get out of alignment in winter or summer due to expansion contraction etc. I used this to enlarge hole in striker plate so the dead bolt works smoothly in different humidity conditions.

Cuts steel well. I needed to take the welded seam from the inside of 4” pipe this did the job great and is now in my die grinder all the time

Es muy resistente

I bought this carbide bit to shape a hole I had cut I a large zirconium crucible that I was going to use as a burn pot in my propane powered forge. I didn't realize how tough this material is. I destroyed two carbide bits to drill a pilot hole in the 3/4" wall of the crucible. I then used a dozen carbide rod saws to cut the two and a half inch hole in the side. I then used this bit to shape the opening into the burn chamber so the flame would enter at an angle to the inner crucible to create a vortex flame path. This bit withstood the three or four hours of grinding to make the opening work. I have never worked with such a hard substance and this buit held up enough to get the job done.

Only used it once (on stainless steel) and worked like a charm! Too early to comment on durability/value.

I needed to lengthen the bolt slots on the hinge to adjust the gate after it had moved a little. The bolts were at the end of the slot. This burr quickly allowed me to lengthen the slots. I used a Dewalt 20V Max drill and you could see the filings pilling up. Take your time, just use enough pressure to see those filings coming off!

This bit did great to widen the faucet hole in my parents granite kitchen countertop to fit their new Kraus faucet also from Amazon. Highly recommended!