6 Packs Titanium Combination Drill & Taps Bit Set SAE 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc.

First one broke on first try. Tought me to be careful and keeping the tap straight. The next 36 was easy and I had no more broken taps. Make sure to go slow and hold it straight. Material was1/16-inch square posts.

This 3-in-1 drill and tap bit set has been a game-changer for my metalworking projects. The combination of drilling, tapping, and countersinking in a single bit saves a ton of time, and the included SAE and metric sizes cover almost every job I encounter. The high-speed steel bits coated with titanium alloy are tough yet precise, working smoothly on aluminum, copper, brass, plastics, and thin steel sheets. I also appreciate the quick-change 1/4” hex shank adapter and organized carrying case - it makes switching bits and storing them so easy. Following the tips to go slow, use cutting oil, and drill pilot holes really makes a difference for cleaner, more accurate holes. Overall, this set is durable, convenient, and perfect for anyone who needs a versatile solution for drilling and tapping metal and other materials.

These work great. I did not use them with a drill but with a hand crank as what I was tapping was a bit expensive and did not want to experiment with using a drill. I used tapping oil and wiped the bit each time I use it so it would not clog. Unlike a regular tap I did not have to back in and out to clear the tap and was able to tap 2020 extrusion in one pass.

I had 60 parts to make that all had only 1 hole to drill and tap in each one, and I didn't want to spend the time to do another tool change, so I had an idea to use one of these drill/tap combination bits and just write a combined drill/tap cycle. I had to find an ER20 hexagon collet, but once I had that, this all worked really great! I'm using a stepper motor for a tapping spindle because I can precisely control the rotation and keep it in sync with the down feed. I'm feeding the correct amount per rotation following the charts, and of course for the tap I need to feed at the tap pitch, but I have not broken one of these yet, in fact, I still have the first one in the machine. It sees to cut well, making uniform spirals. This is only aluminum, so it's pretty easy to drill and tap, and I am using a drop of oil on each hole.

Poor quality item. It broke on first use. Gave me so much grief to get the broken bit out of hard wood. It was suppose to be tough drill bit, paid premium to get it. It is now going back

Just what I needed to drill, tap 10-24 thread, and deburr top of hole in 1/8" hot rolled steel. They will actually work on steel up to 0.200" thick. Any thicker and it will start to tap before finishing drilling, and will start to deburr before finishing the tapping. One disappointment: it will not fit into my Milwaukee driver, even though it appears to be the same size across the hex flats as other driver bits. But it worked fine with my drill chuck.

Broke pretty easy when it started tapping.

good

Pas assez solide

Worked well for what I needed them for but won't last long as they feel cheap

Two of them broke the first time I used them. Seem like poor quality, unfortunately.

Breaks far too easily. I suspect not case hardened but brittle right through. Two broke while simply cleaning paint out of a pre-drilled hole.

Pour le travail que j'ai à faire ce produit répond à mes attentes.