BoschIMC12 3/8" Impact MultiConstruction Drill Bit

It very helpful in getting the job done..

I build some curved stairs. The side rails are laminated layers of 1/4" plywood. To hold the layers together while the glue dried, I used narrow crown staples in a pneumatic stapler. The first layers were also screwed to the underlying structure.I wanted to drill 1/2" holes through the laminations and underlying 2x4s to install carriage bolts for extra support. I was concerned that staples randomly place in the various layers and screws in the bottom ones would damage a regular drill bit, so I bought this one.The bit bullied its way through the wood OK and I could hear staples being cut once in a while. I was trying to avoid hitting screws but hoped it would survive such an encounter.I did hit one screw and it sheared the "ears" off the tip of the bit. This was disappointing but, given the design of the bit I wasn't very surprised. I managed to drill more holes which were understandably smaller, but I was able to hammer in the 1/2" carriage bolts anyway.I deducted one star, not because it broke when hitting a screw, but because it does quite a rough job on the wood. I may have been better off buying more cheaper 1/2" standard bits and replacing as they dulled. Nevertheless, I did buy a replacement to drill on the other side of the stairs and to keep in my toolbox for appropriate jobs.

Haven't used the Drill bits yet, but I spent 15 minutes modifying the case to suit my needs. If you work in the trades, you've probably encountered things that seemed like a good idea on the drawing board but needed some "field adjustment" to actually work. This case is one of those "good ideas"... Clip off the red post and unscrew the base from the cover. Use a small screwdriver to pop the clips at the top of the case. use the same screwdriver to work the bits loose from the retaining plastic tabs. Use some flush cutting nippers to remove the plastic retaining clips and the center ring for the 1/2" bit. dispose of the scraps of plastic and snap the case back together. Problem solved.

great for drilling through raised floor tiles that are steel and concrete

Theses are great bits with a solid milled hex bit not a secondary metal that has been pressed onto the drill bit. The container top screws onto the base almost two inches it does not just pop off. The bits are locked in solid so the first time you pull them out will be tough. The bit holder actually splits apart revealing how the bits are held. If you open the bit holder you can use a blade screw driver to move the bits out of the grip of the base. After that just don't press them all the way down and they are easy to remove when you need them. I marked my case with a piece of tape and noted that the top screws on as a helpful reminder.

This drill bit worked really well drilling into brick. I tried Ryobi, Dewalt, and various others and this is the only one that made the job effortless with a hammer drill. Remember that hammer function in brick should be slow and steady. If you find yourself pushing the drill and bit into the brick, take a step back and find out what’s wrong

Buena

Decent bit for the money

Qualidade das brocas é muito boa. Uso em carpintaria devido ao tamanho longo pra fixação de vigas em alvenaria.

Goes through a brick wall like cheese melts.

Item as described 10/10

Produto de primeira qualidade recomendo.

Can't really drill walls.