On Sep 14, 1:19*pm, "rb" wrote:
I see some hammer drills with keyless chucks.

Hard for me to believe keyless chucks would grip a bit tightly enough to
work with it.

Are keyless chucks OK with hammer drills???

Not that hammer drill is my primary use for it, but my Dewalt 18v
cordless has never dropped a bit in hammer mode. Their keyless chuck
has a feature which locks it with a slight twist after tightening.