ARW was thinking very hard :
On 24/03/2018 03:13, wrote:
On Friday, 23 March 2018 21:56:42 UTC, Harry Bloomfield wrote:
tabbypurr has brought this to us :

Hammering doesn't engage until it's pushed. Basic physics says it could
hardly be otherwise.

If you push, the hammer action stops. It is a matter of just holding
the drill against what ever you are drilling, which allows the hammer
action to begin.

you must have a different sds drill to my bosch & dewalt.


And my Makitas cordless. No pressure no hammer.

I have two here - an ancient and heavy Aldi fixed speed one, plus a
more recent Lidl item which is variable speed and reverse. Apply a lot
of pressure on either one and the hammer action declines rapidly. I
have used Bosch, DeWalt and numerous other makes - the trick is always
to let them do the work, never push, just steady them gently against
the job. The SDS hammer action is produced by a lump of metal rising
and falling on the end of the bit holder. In all cases, apply too much
pressure on the thing and it can kill the hammer.