</div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE </td></tr><tr><td id='QUOTE'> If Naruto grabbed at the end</td></tr></table><div class='postcolor'>

they&#39;re sharp as blades, its the same as if Naruto grabbed someones sword at the end.
sharpened bones are possibly sharper then a normal blade can be.

not only that, they&#39;re retractable, once Kimimaro notices Naruto grab one to his advantage, pop it goes back in - Naruto hits Kimimaros elbow then bam, straight back out into Naruto.

whats so poorly thought out is your analysis of the situation