My dw056 breaks bits can you change the hammer to a 1/4" or 3/8" hammer they look the same on the manual

If your wanting the sleeve, #12 on breakdown, then search the part # as There are other places that still have it. http://www.ereplacementparts.com/dewalt-dw056-type-18v-cordless-impact-driver-parts-c-1009_9591_2845.html

It only accepts 1/4" hex shank bits and nut drivers. Mine just pops in and to release it, you push the black collar around the bit down. Cannot put round end bits in it. Only hex shanks

Worked at a tool rental store while attending college and learned some tricks from the old-timers. To extend the life of flexible blades such as the one used on floor tile removers, use a second shorter blade on top of the longer blade (double blades). The shorter backup blade tends to absorb the extra force making the longer blade last longer before breaking. The length of the shorter backup blade is trial and error, however start with about 3/4 to one inch back from longer. The wide chipper bits tends to break also. The wider the bit, faster to break. No matter what size hammer. Has to do with the bit hitting the stop on the forward motion. Some older chipper hammers that had rubber or spring loaded bit stopper would prevent wide chipper from breaking so fast. Good luck

An impact driver won't work very well as a drill. In fact it will probably break drill bits in anything but very soft material (like drywall). A drill bit needs a smooth continuous motion, because it cuts continuously as it turns. An impact driver turns with a staccato motion.

The pinion on front of motor is slipping on motor shaft. It seems to be just a press fit. Seems like a flaw in design. I had same problem. I took my dw056 apart and took pinion off motor and pressed groves into motor shaft with side cutter pliers. then pounded pinion back onto motor shaft. We will see how long this lasts the motor shaft is a softer metal. I feel the motor shaft should be hardened steel like the pinion and have a shear pin or some sort of spline to attach to pinion. Would like Dewalt to offer fix for this as I only used dw056 a couple of times before I had problem.

I had same issue with Metabo hammer drill. It was faulty triggrer. Replace it and it shoul be fine.
Juraj

Sounds like the bit bent slightly and as a result jammed into the chuck. Open chuck as much as possible and have someone pull the bit out while your tapping it with a small hammer. The vibration from the tapping might loosen the bit from the chuck.

if i'm confused i'm sorry, but don't confuse and impact driver with a hammer drill

2 different tools altogether

its supposed to impact immediately that is what gives the tool its power. once you get used to it you will use it for everything its lighter and more powerfull than the drill. just dont use spade bits in it or it will shatter them. try to buy tips that are impact ready

If this is a Dewalt tool as the picture indicates I would go to Dewaltservicenet.com and type in your model number for a manual, I also believe there is an area that you can click on for this information