On 14/08/2020 12:22, williamwright wrote:
On 13/08/2020 20:17, Dave Liquorice wrote:

The OP says he changed drilling machine but not if he used and
kanckered an 6 mm SDS bit or used the same Bosch drill in an ordinary
chuck fitted to the SDS machine. Not that you are suposed to use SDS
in hammer mode with such a chuck fitted.


The mass of the chuck inhibits the percussive action. The bit slips. It
just doesn't work.

Not sure if mass alone would account for it. For example I have some 1m
long SDS bits, and they are a good deal heavier than an add on chuck,
but they drill ok.

--
Cheers,

John.

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