Brand new Bosch PS 20 drill Kobalt 1/4" bits snap into place, however there is still "play" between the bit and the chuck, creating an untrue bit revolution while drilling. Anyone? Thank You

Check that you have removed all the bits from inside the spindle. Also check to see if you can see inside the spindle two fins inside the spindle (they provide the drive for the bit. Make sure that you have not lost the ball from the chuck assy and rebuilt it correctly.

Try not inserting the bit all the way in until it bottoms- it should not bottom. Also make sure it is the correct size range for the bits you have.

some drill bits have a certain way to be installed,if not put in correctly it will loosten up

Hello. Wrap a towel around the chuck and use a pipe wrench or a pair of channel locks to put a little force on the chuck. J.

The drill uses bits with the SDS+ connection end. You have three different modes of operation. Hammer drill for drilling into concrete. Drill only for drilling into wood or steel and chip only for chiseling concrete. Now for drill only you would have to change out the chuck for a jacolbs style.

The bits just snap in the chuck. To remove the bits you just slide the chuck sleeve back and remove the bit. To change the chuck you wolulld place the palm of your hand over the chuck and using your fingers pull the sleeve on the chuck that is near the red housing towards your palm and just pull off the chuck.It will snap back on the same way.

Hit a metal part of the clamp chuck to just create a "shock" using a hard rubber-hammer (or a metal hammer if the rubber one fails) one or two times. Chuck grip will loosen on the bit for you to remove it.

Push or pull the business end toward the body while gently pressing and rotating the bit into it. The chuck will snap back up to retain the bit when you have it lined up right.

This drill has a keyless chuck. Put your bit in the chuck and hold the collar of the chuck while pressing the trigger in the forward position. To undo the chuck do this in reverse. You can also hand tighten the keyless chuck if you prefer. I have a 1/4' adapter that I keep in my drill so I can change bits quickly.

try pulling the chuck back at the same time turning the bit while installing it should drop into place release the chuck,then make sure the lever just in front of the trigger is switched over to the rite side to use the hammer action.hope this helps

What size bit are you using if it is real small it may be below the min sixe require for that chuck .If it is say 1/8 or larger it may be time for a new chuck .They are easy to replace open the chuck as far as you can there is a screw inside them most of them are left hand threads just back it out and tap the chuck loose with a hammer .Make sure you know the threads of your chuck when you buy the new one most are 1/2-20 but some can be 3/8-24 tpi