Bosch LBH0045 1/4 Round Hammer Drill Bits (5 Piece)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Asymmetric diamond-ground carbide tip – allows for precise starts</li><li>Milled U-flutes with deep-cut spiral – delivers fast material removal</li><li>Robust head – for long service life in impact applications</li><li>Grip shank – provides aggressive gripping power</li><li>Designed for impact applications – for fast drilling in block， masonry and concrete</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41rs9qYqUhL.jpg" noproxy>