Bosch HCK001 7 pc. SDS-Plus® Bulldog™ Rotary Hammer Bit Set

Nice little set at a good price

These are super durable and work great going through brick and concrete.

These bits are of high quality and are very sharp. I used another brand bit and it could not do the job. Theses bits are sharp and make drilling into concrete very easy

Needed to drill some holes into very tough concrete and needed to step things up from a regular hammer driller. So, I ended up getting an SDS Plus rotary hammer that makes super quick work of concrete holes. I chose SDS Plus because I couldn't ever see myself drilling holes bigger than 1" in diameter. I also wanted a set of shallow concrete carbide drill bits that I could easily throw into the tool box. This set has worked a treat so far. I have drilled many holes back to back without any damage to any of the bits or the carbide end. The flute design also does a great job at removing all the dust from down in the hole. This set comes with 5/16", 3/8", 1/2", 3x (2 long, 1 short) 1/4", and 3/16" bits. As long as your rotary hammer supports SDS Plus bits, these will fit just fine. Would highly recommend!

I bought a rotary hammer because I was having trouble drilling into the concrete slab of my house with an ordinary drill. Whoever poured the slab 50 years ago did a very good job. Anyway, with these drill bits and the rotary hammer I was able to quickly drill three holes I needed to install a door transom. Previously it took me about an hour to drill the holes (and I put them in the wrong place). I re-drilled them in about 45 seconds each with the hammer and this bit set. I have no complaints on the bits. However, I wish now that I had bought an SDS-Max hammer instead of an SDS-Plus. In addition to having more power, the SDS-Max seems to have more attachments, like extra-long drill bits, that I can't find for the SDS-Plus. So if you are reading this before you buy the hammer make sure to get the right one.

Excellent item that made a great gift that does the job.

These rotary hammer bits by Bosch are a good product. Keep in mind the SDS designation as they are for a specific application and for using in the newer line of tools by Bosch. Bosch name can be trusted for quality but in many instances is overpriced. Some sizes of these bits I use more frequently than others, so would be better off purchasing multiples of those then as a set. It seems to me that there is a lot of collusion or price fixing going on in the tool industry as a whole, which is unfortunate because there are many tools I would like to purchase but just can't afford. I'm not referring to this set of bits when I say this. I would love to purchase a good heavy duty tables saw instead of the light weight one I now have. I would like to acquire a good band saw, drill press, edger/planer, and belt/disc sander but can't at the high retail prices by the tool companies today. Is there a source for good condition lightly used tools that people have purchased and later changed their minds about????? Would be interested in hearing from anyone regarding this question.

These are some bad boys. Thinking these will be a serious drilling exercise in concrete. You need the right tools to do a good job. Will follow up after use.