On 15/08/2020 08:25, Jeff Layman wrote:
On 14/08/2020 23:36, Dave Liquorice wrote:
On Fri, 14 Aug 2020 21:07:03 +0100, Jeff Layman wrote:

I hadn't considered that. Is the tip of an SDS drill bit of
different/heavier construction than an ordinary masonry bit?

Yes...

Got a good link for that? I can see the SDS-fitting and often the flutes
are different, but how does the SDS tip differ from an ordinary masonry
bit tip? The Tungsten Carbide would be the same material, and AFAIAA the
geometry is the same. I'm not questioning that SDS drills are more
efficient at drilling/hammering than ordinary hammer drills, but I can't
find anything which says the bit tips are any different.



https://en.wikipedia.org/wiki/Drill_bit_shank#SDS_shank

SDS is all about how the drill is held and nothing about the tips at
all. But you can (it appears) get a better hammer action on an SDS.
So as usual Liqour-ish is wrong..




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