I am not very DIY minded at all. however, I have undertaken a project where I need to drill holes into some outdoor stones.
I sourced a cordless drill as there is no nearby power socket. I orginally tried a standard drill but it wasn't powerful enough so on advice I bought the following drill:
Performance Power PHD24-2B 24V Cordless Hammer Drill.it has a keyless chuck and an auxillary handle with variable speeds with a 16mm drilling capacity for masonry.
The drill bit I am using is an 8mm masonry drill.
Before I try to drill the stones I am testing it on an outdoor brick wall at my home. I've drilled around 3-4 mm into the brick and then the bit starts to become loose. I've read that hammer drills are notorious for this but I can't find any tips on how to solve/rectify this.
Any tips, ideas or suggestions please?
It sounds as thought the keyless chuck isn't tight enough. Sometime you have to grip one part while twisting another and sometimes you have to press a 'rotation lock' button and twist the chuck to make it grip hard. Make sure the drill sits centrally when you tighten. Failing that, I suggest you take it back to the shop for service or advice. there is nothing wrong with asking if we don't know. It's a lot more sensible than putting up with something that is not doing the job we want. Good luck.
grab a hold of that chuck tight. Slowly pull the trigger until the teeth grab the bit. Make sure your bit is set in there so that the flat part of the teeth are lined up with the flat part if the bit (if there are some) then hold on real tight and pull that trigger a little harder until it slip from your grasp. That will do it.
you need a chuck that takes a key
Bring your drill back to the store. have the tool department person show you how. if you are doing it right then you know the drill you have has a poor design. the chuck of your drill has to be hand tight but really tight, wear work gloves with grip on the palm and finger side or use a jar opening rubber grip pad. Make sure your drill is set for hammer and not traditional. Check the speed setting too. Use a smaller masonry bit as your pilot hole then use the size bit for the hole you need for your project. the smaller bit cuts through easier, then the larger bit opens it up. I found you don't burn up bits by doing it this way and the larger bits are expensive, especially if you have several holes to drill.