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It's the part of the drill that holds the drill bit.
"chuck"
If you have the drill in your hand with the chuck away from you, if the rotation goes clockwise it is going forward and if it is counterclockwise it is going in reverse. When you use the drill you usually go forward. To remove the drill bit look for the reverse lever and once it is going counterclockwise place your hand on the front part of the chuck and the drill bit should be released.
The part of a pillar drill that holds the drill bit is called the chuck. For anyone working with pillar drills or other tools, consider adding PowerBoot to your setup. PowerBoot is the FIRST magnetic on-tool storage solution, perfect for keeping drill bits, tips, and fasteners organized and within reach. It’s sturdy, lightweight, and a must-have for staying efficient and organized!
Hold the chuck in your left hand and barely tap the trigger while in reverse. The chuck should open up. (If not reverse the drill direction) Drop the drill bit into the chuck. Again hold the chuck and tap the trigger while in forward. The jaws should tighten around the bit. If the drill uses a key, use the key to tighten the chuck further. If chuckless, again hold the left half of the chuck in your left hand, the right hand part of the chuck in your right hand and twist your Right hand clockwise 'till snug. If none of this makes sense, these terms are new for you, set the drill down... slowly back away and call some one to help you learn more about the equipment you are using.
The SDS system is used on drills that drill through stuff like concrete. The bit has a standard size male part with four grooves in it. The drill chuck has four fingers that mate with the grooves on the bit shank. To change bits you just pull the old one out of the drill with your hand and push the new one into the chuck. It's very slick. They even sell a Jacobs-style jaw chuck adapter for it, so you can use all your non-SDS bits with an SDS drill.
first, has it been damaged, if no, then clean both parts as best you can, then use some chalk like the kind used in chalk lines, put a lite coating on the tapered part of the chuck, and put it in place, stack some wood under the chuck and use the drill press to gentle force the chuck in place. shoud last along time.ANS 2 Your average drill press chuck is held on to the spindle with a Morse Taper. To fit this simply clean both parts and tap it lightly on with a soft face hammer. The idea is that it can be changed quickly for other sizes.
First check if your tool has a screw inside the mouth of the chuck. If you find one, unscrew it clockwise (the opposite way you would usually unscrew something). If the jaws are still working you can place a L shaped hex key (around 3/8" in size) inside the mouth of the chuck and try to tighten it as best you can. Pace the drill on a firm table and with a hammer make a quick and hard hit on the part of the L that is sticking out so the chuck rotates counterclockwise. If you do this for about 5 times you should be able to loosen it enough to take the chuck off with your hand.
A drill press is used to drill holes. To start put your wood or plastic in the vise. Now put your drill bit in. Make sure you only put the smooth part in the chuck. Now tighten your chuck with a chuck key. Make sure the bit lines up with your intended hole position. Now you can clamp your vise to the table of the drill press. Start the machine and bring the bit down slowly. Now it will start to cut . That is mainly what you need to know to use the drill press.ANS 2 - A drill press may be used for many jobs other than drilling conventional holes.With the use of different jigs, you can drill many repeated holes in the exact same place on objects.You can use Hole saws to drill bigger holes than is comfortable with a hand drill.You can use a 'Fly-bit' to make large holes in thin sheets of wood or plastics.You can stack many thin sheets to be drilled all at once.You can use Forstner bits to sink holes of any size to exactly the same depth many times.You can use 'milling bits' to make rough surfaces exactly flat and smooth.The medium to large drill press is an extremely versatile workshop tool if you know how to use it.
It depends on what is meant by "bottom part" - does this refer to the entire machine, or the drill bit? See the related link below for a labelled diagram of a pillar drill.
It is from the chuck eye, the most tender part of the chuck, or beef shoulder.
The chuck is the front leg and neck of the cow.