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					Originally Posted by kronckew
					
				 
				I concurr, it's just adding weight to the tip to increase the cutting impact of the working area, much like the adding of a 'yelman' to the newer model shown in the thread. 
			
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 Hello Wayne,
Yes, this will be the reason, it's logically. Second point will be the strengthing of a weak point IMVHO.
Regards,
Detlef