How durable is this bit? How many holes did you make until it lost its sharpness?
1007722
It's ok. I hit a screw with this one early on and dulled it. I had made about a dozen decent pieces with it prior to this.
1007723
This is called a knife edge bit, because it has a smooth outside edge. The other type is toothed edge. Knife edge will leave a clean cut and not move around as much as a toothed edge will as you drill. The knife edge will dull quicker than a toothed edge. If you are using a hand drill vs. a drill press, and large diameter toothed edge drill bit it can sometimes be hard to control the drill.
458607
Variable speed = Trigger. "Would this work?" = Probably, however, the correct answer is that I can't really tell you based solely on the thickness of the material. Two other variable exist: the size of the hole and the quality of your bits. Most drills and bits out there can do (1) 3/8" thick hole through annealed high carbon steel, however, if you use cheap bits, and/or the wrong amount of pressure/speed, that bit won't drill another hole. I give that size hole simply because of the chuck size. If you get bits with a smaller shank and larger bore size you can do larger holes.
1596878
One might try Forstner bits - they cut the outer edge of the hole first, leaving a nice clean hole. They also have a centering point.
1127899
When I use a 2" hole saw, it seems to lack power, I have used a 9/16th's forstner drill bit and it worked well. I have worked with red oak.
1884506
It has been a very good tool for me. I've tried it for wood mostly, but I believe the type of bit you would need would be different for concrete and metal.
873705
You can buy an additional bit directly from Kregg. Personally I haven't had to. It stays sharp.
2083087
I have used up to 1 1/4 inch paddle bits on this drill (it struggles with 1 1/8 or 1 1/4 but 1" on down it works great (though with 3/4 or 1" you have to clear out the chips every 2" or so if you are drilling down through more than 1 2x).
2143433
I cannot comment on the warranty as I have not needed it. I use this router at least 4 times a week for mostly cutting holes for home audio speakers and trimming edges. I have even used 1/2" end mills for machining counter sinks and recesses and this thing has performed flawlessly for the past 2 years. A few tips to make it a better machine. 1 Make sure you polish up the collets with 800 grit sandpaper. The seem to be a bit rough from the factory and will cause your bit to get stuck. 2 Take the left spring out of the plunger. This will make it very silky and fluent during the plunge process. That's about it. Good luck.
1958664
It worked very good for me. No overheating. But please make sure you use a good bit. Look for some brands like Bosch, Metabo etc. Actually I beleve that bit is more important than drill.
2012247
These are wood drill bits. I am not sure how long they would last for your material.
2065346
Pretty solid pieces as far as durability. I cast pieces smaller then a button well about 8 of them I used a silicone rubber to mold the shapes it has it's own release agent mixed in with it . Anyway the pieces turned out very hard and I was able to use my Dremel to polish them down a bit after they cured. I highly recommend it. However be sure to use rubber gloves ( kind you clean a stove with) as I believe if this gets on your skin into your pours it can lead to your repository system shutting down. No chipping no cracking of any of my cast so far.
1596876
I would recommend a non pilot pint bit it acts like a screw pulling the bit through material faster than the drill can spin it. Mad dog drill bits makes a good set for a little more cost
1512819
I have used "Round End" bits for drilling. Usually, "Hex End" for driving screws.
1516705
I had some breakage drilling a small hole for a key chain, I needed 80 and 6 or 7 broke along the grain when I drilled them using a drill press. Hope this helps some even if it doesn't fully answer your question
992923
i cut through a 4 by 4 wood post a few times and it worked good for me. the sharpness of your blade really makes a difference
295343
I used this with 1mm drill bits into MDF. I do not see any reason why the chuck would not accept a .5mm bit. I used it to put fiber optics through MDF for a star ceiling. As you can see from my previous review, the tool failed after 10-20 minutes of use. It ran very smoothly and nice at first but the failure was not what I expected given the price. I ended up having to run to W*L - M*RT and picked up a black and Decker tool for $29 to finish the job. The Black and Decker finished the job (more than 1100 holes) without incident.
350112
I just got mine a month ago and have cut about 500 and its still going strong. Hope this helps.