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Your cart is empty.3 Piece Set includes 1/8, 3/16 and 1/4 in Plastic Pouch Kit. Solid Carbide drills are designed for drilling abrasive materials when drilling accuracy must be maintained and/or when used in high temperature drilling applications. Solid Carbide drills are used on materials such as cast iron, non-ferrous alloys, high silicon aluminum, copper, plastics, bronze, hard rubber, plexiglass, and other similar materials.
Awesome product
Reviewed in the United States on February 19, 2025
This worked great at drilling out a broke off easy out in an aluminum Chevy head.
Awesome product
Reviewed in the United States on February 19, 2025
This worked great at drilling out a broke off easy out in an aluminum Chevy head.
Had high hopes
Reviewed in Canada on January 25, 2025
This drill through stainless steel like it’s butter, I couldn’t find cobalt drill bits that could drill through a stainless steel, got this drill bit and using a drill press it was so easy.
Had high hopes
Reviewed in Canada on January 25, 2025
This drill through stainless steel like it’s butter, I couldn’t find cobalt drill bits that could drill through a stainless steel, got this drill bit and using a drill press it was so easy.
Christopher M
Reviewed in the United States on September 4, 2024
They wanted $600 for this exhaust flange on my diesel, what the heck its just a metal doughnut like a gym weight !4 stainless steel bolts broken off, pitting corrosion.Read reviews saying these types of bits break but mine didn't, just push is a straight direction and take your time.They did not even seem to dull. Now I am just thinking were did I put them, I did this project many months ago and its only asking for a review now.
Christopher M
Reviewed in the United States on September 4, 2024
They wanted $600 for this exhaust flange on my diesel, what the heck its just a metal doughnut like a gym weight !4 stainless steel bolts broken off, pitting corrosion.Read reviews saying these types of bits break but mine didn't, just push is a straight direction and take your time.They did not even seem to dull. Now I am just thinking were did I put them, I did this project many months ago and its only asking for a review now.
JKB
Reviewed in the United States on August 7, 2024
I bought this to drill some hardened knife blanks with. It broke after about 8 holes but it did drill the hardened steel with no issues until it snapped. I would and will buy another one.
JKB
Reviewed in the United States on August 7, 2024
I bought this to drill some hardened knife blanks with. It broke after about 8 holes but it did drill the hardened steel with no issues until it snapped. I would and will buy another one.
Daniel Abbott
Reviewed in the United States on February 3, 2024
I ordered this bit because I needed something that could drill into a 20 CV blade hardened to 63 HRC as well as the little hardened piece of Steel that holds the detent ball, with a couple squirts of WD-40 it drilled into the hardened steel like a normal drill bit drills into Pine, it blew me away because previously I had tried titanium nitride and Cobalt bits neither one of them even put a blemish on the metal, I actually had to hold back as to not go all the way through the blade
Daniel Abbott
Reviewed in the United States on February 3, 2024
I ordered this bit because I needed something that could drill into a 20 CV blade hardened to 63 HRC as well as the little hardened piece of Steel that holds the detent ball, with a couple squirts of WD-40 it drilled into the hardened steel like a normal drill bit drills into Pine, it blew me away because previously I had tried titanium nitride and Cobalt bits neither one of them even put a blemish on the metal, I actually had to hold back as to not go all the way through the blade
Don
Reviewed in the United States on February 22, 2024
Quick ship and it Worked!!! So years ago I broke off one of the top differential cover bolts on my car and didn’t bother with it since any leak was minimal and it was again at the top. Finally restoring the Fbody and wanted to get the bolt out. Ordered 3/32 and 5/64. Center punched the bolt as best I could and started drilling slowly with 5/64 and cutting oil (in my case gear oil). Was going slow and made a decent hole but wanted to make it bigger with 3/32. I went to drill with the 3/32 and forgot I put the drill in reverse. The 3/32 acted like a left hand bit and pulled the bolt right out. I thought I had more drilling to do but apparently not! Great bits to have. All praises be to TMH!!!
Don
Reviewed in the United States on February 22, 2024
Quick ship and it Worked!!! So years ago I broke off one of the top differential cover bolts on my car and didn’t bother with it since any leak was minimal and it was again at the top. Finally restoring the Fbody and wanted to get the bolt out. Ordered 3/32 and 5/64. Center punched the bolt as best I could and started drilling slowly with 5/64 and cutting oil (in my case gear oil). Was going slow and made a decent hole but wanted to make it bigger with 3/32. I went to drill with the 3/32 and forgot I put the drill in reverse. The 3/32 acted like a left hand bit and pulled the bolt right out. I thought I had more drilling to do but apparently not! Great bits to have. All praises be to TMH!!!
Jim H.
Reviewed in the United States on December 13, 2024
Was using this bit to drill a hole in hardened stainless. I used lubricant/coolant specific for drilling and prolonging the life of drill bits. After drilling one 1/8” deep hole the bit would not drill. Inspection revealed the tip was broken off. This was a waste of money. Pick a different bit.
Jim H.
Reviewed in the United States on December 13, 2024
Was using this bit to drill a hole in hardened stainless. I used lubricant/coolant specific for drilling and prolonging the life of drill bits. After drilling one 1/8” deep hole the bit would not drill. Inspection revealed the tip was broken off. This was a waste of money. Pick a different bit.
Michael C.
Reviewed in Australia on October 4, 2024
One special job require the most capable drill I could purchase. I tried HSS drills…it was like ice skating on my job;, cobalt was next try, but that was the same. So this job required a tungsten carbide twist drill if it was going to be successful. The steel to be drilled was harder than a kingpin/bolt; about Rockwell C65. This drill was not inexpensive but cheap drills would surely just waste time. I am pleased to tell you that this drill went through this very very hard steel like it was cheese. Slow speed, mounted in a drill press, plenty of cutting oil, moderate but constant and consistent pressure and …success. In fact two holes in two pieces of steel; so perfect.🤗
Michael C.
Reviewed in Australia on October 4, 2024
One special job require the most capable drill I could purchase. I tried HSS drills…it was like ice skating on my job;, cobalt was next try, but that was the same. So this job required a tungsten carbide twist drill if it was going to be successful. The steel to be drilled was harder than a kingpin/bolt; about Rockwell C65. This drill was not inexpensive but cheap drills would surely just waste time. I am pleased to tell you that this drill went through this very very hard steel like it was cheese. Slow speed, mounted in a drill press, plenty of cutting oil, moderate but constant and consistent pressure and …success. In fact two holes in two pieces of steel; so perfect.🤗
James Tollett
Reviewed in the United States on October 14, 2023
I normally don't write reviews but I felt the need to for these. I bought 4 sizes of these, 5/32, 3/16, 9/32, and 5/16. I'm a knife maker and I had 20 plus year old, 1/8 inch thick, 154CM high carbon stainless steel. I tried milwaukee cobalt bits who work great for most high carbon steels but they did nothing but burn out on this strong steel. I did not change the speed of the drill press at all and just stopped a few times to add more cutting oil and boom...4 perfect holes in some very, very tough knife steel. Knife makers, I found your answer. I have only used them a little so I don't know how they wear over time but I hope this helped. They are worth the money! One of the holes was smaller and I tried a cobalt bit of a larger size and it still didn't work!
James Tollett
Reviewed in the United States on October 14, 2023
I normally don't write reviews but I felt the need to for these. I bought 4 sizes of these, 5/32, 3/16, 9/32, and 5/16. I'm a knife maker and I had 20 plus year old, 1/8 inch thick, 154CM high carbon stainless steel. I tried milwaukee cobalt bits who work great for most high carbon steels but they did nothing but burn out on this strong steel. I did not change the speed of the drill press at all and just stopped a few times to add more cutting oil and boom...4 perfect holes in some very, very tough knife steel. Knife makers, I found your answer. I have only used them a little so I don't know how they wear over time but I hope this helped. They are worth the money! One of the holes was smaller and I tried a cobalt bit of a larger size and it still didn't work!
Chad
Reviewed in the United States on January 7, 2023
This bit goes through hardened carbon steel like it's nothing. I've seen some other reviews complaining that it broke the first time they used it, but I've used mine many times now. You just have to be careful and not force it through. Because the bit is so hard, it is also brittle. It will do the job if you let it, but will shatter or snap if you try and force it. Treat your tools well and they'll treat you well. I'm very happy with my purchase. Great quality for the price. 5 Stars
Chad
Reviewed in the United States on January 7, 2023
This bit goes through hardened carbon steel like it's nothing. I've seen some other reviews complaining that it broke the first time they used it, but I've used mine many times now. You just have to be careful and not force it through. Because the bit is so hard, it is also brittle. It will do the job if you let it, but will shatter or snap if you try and force it. Treat your tools well and they'll treat you well. I'm very happy with my purchase. Great quality for the price. 5 Stars
Ricardo Couto
Reviewed in Canada on June 26, 2022
Avoid
Ricardo Couto
Reviewed in Canada on June 26, 2022
Avoid
Roostius_Maximus
Reviewed in Canada on July 30, 2021
Excellent as expected.
Roostius_Maximus
Reviewed in Canada on July 30, 2021
Excellent as expected.
TacticalTinker
Reviewed in Canada on April 15, 2021
Not durable at all. Tip Broke off after first use, lubricated and at moderate speed, cutting stainless steel. Unsatisfactory.
TacticalTinker
Reviewed in Canada on April 15, 2021
Not durable at all. Tip Broke off after first use, lubricated and at moderate speed, cutting stainless steel. Unsatisfactory.
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