"bought this for drilling through an old 9" thick wall to run a satellite cable through. didn't need hardly any pressure and just let the drill do the work and it coped easily. took about 30secs to drill 9" deep the drill still looks like new. great for the money
i would say that it was a bit wobbly in the SDS drill but the RPM was slow so did not bother me too much"
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Review 2 for Erbauer SDS Plus Masonry Drill Bit 14 x 450mm
"I don't usually buy tools from this manufacturer but I needed a bit this size for just 24 deep holes in general masonry, nothing too tough. The bit couldn't make it all the way to 24 and snapped. Stuck at hole number 7 and 1/2 until something better arrives tomorrow."