Patent ID: 7641004

Claim:
A bit for drilling a hole, said bit comprising; a support member, said support member defining a support member proximal end and a substantially longitudinally opposed support member distal end, said support member having a passageway extending substantially longitudinally therethrough; a substantially annular crown defining a crown distal end and an opposed crown proximal end, a radially inwardly located crown inner surface and a radially outwardly located crown outer surface, a crown inner diameter and a crown outer diameter, said crown extending from said support member such that said crown proximal end is located substantially adjacent said support member distal end; a slot extending between said crown inner and outer surfaces from said crown distal end substantially longitudinally towards said crown proximal end, said slot defining a slot first side wall, a substantially circumferentially opposed slot second side wall and a slot proximal wall extending therebetween substantially opposed said crown distal end; and a reinforcing member extending substantially circumferentially across said slot between said slot first and second side walls; wherein said slot includes a slot proximal segment extending between said reinforcing member and said slot proximal wall and a slot distal segment extending between said reinforcing member and said crown distal end.