On 2/25/2013, Darrell R. Smith did amazing iron palm breaking with no spacers. A breaking many people could not do, in fact, no one could not do this yet. He is the only martial artist in the world to perform death touch on cinder blocks. He did this at Waldorf, Maryland, USA.
Darrell says: This break is Dim-Mak breaking death touch on cinder blocks. I’m the only one in the world to do this type of breaking. Also I use the internal energy in my breaking to give me the power to break with no spacers. adsense banned Also I do Chi Kung, the way of internal power of energy and of the mind. I’ve been doing my arts for 48 years now, and I wanted to set several World Records.
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You can see the video here: