are these hollow ground bits?
1937979
Do not know, but you can get better bits from Harbor Freight, that is how crappy this set is.
1937980
Yes, Iam very happy with set.three different blade thicknesses with each width.
1937981
Yes, the flat blades are all hollow ground. I just used one of the phillips bits on some brass screws into a furniture hard wood without rounding out the center. This is a quality set.
484815
No they don't, they have hex openings. No way to use round bits without an adapter.
1216569
No they are not. They are heavier then hollow ones and very nice. Great product.
2226882
NO! Look for bits labeled as masonry bits. They have a completely different tip.
938702
Yes, they're hollow and just have a simple, easy to pop-off plastic end cap. They also drill well, I had to poke a couple holes in mine to get the controls to mount correctly. Down side is the paint on these bars scratches easily, but that wasn't really an issue in my case as I'm just using them to restore an already beat up streetfighter style bike.
1312440
No they are not. The drills have flats on the shank, but do not go down to 1/4".
199022
There is some wiggle. They don't fit snugly like a drill bit in a regular drill.
538154
Yes, but I would not expect these to perform as well as the much higher priced high speed bits made for commercial applications. Even with the best bits available you may need to replace the bit (maybe more than once) to get a hole through even 1/8 inch steel, especially if you try to go fast or don't use cutting fluid. I assume you know to drill a pilot hole before drilling a large diameter hole.
2160976
No, they are not totally flat. There is a small circular indentation, not real deep but definitely an indentation.
1293446
They are solid. They are small so you don't have any room to drill too deep, so you would need to be an expert and what you are doing.
656444
Yes they're hollow, they are the same as a stir stick at a bar. Maybe a mm or 2 wide
676127
I would think so. I have a Black & Decker bit set and the drill has had no issues with using them.
1541374
They work with a regular drill...but I sent mine back they were not sturdy enough for my need.
772089
They're not indented, they're hollow. That makes them sound flimsy but they aren't.
2216179
I have used cheap bits that either fall apart or bend. These hold up very well either in wood or standard steel. So far no problems .
1889805
They appear to be permanently pressed into the socket. At that price, replacing the bit would not be feasible.
412003
Yes, they are. They can also be used for any RCBS die that requires small decamping pins.