Patent ID: 8590646

Claim:
An impregnated drill bit, comprising: a shank having a first end and an opposing second end, said first end being adapted to be secured to a drill string component; a crown extending from said second end of said shank, said crown including a matrix of hard particulate material, a cutting face, and a crown body between said cutting face and said shank; a first plurality of abrasive cutting media having at least one dimension between about 2.0 millimeters and about 5 millimeters, said first plurality of abrasive cutting media being positioned in an unorganized arrangement throughout a first portion of said crown body adjacent said cutting face; and a second plurality of abrasive cutting media having a largest dimension less than about 2.0 millimeters, said second plurality of abrasive cutting media being dispersed throughout a second portion of said crown body between said first portion of said crown body and said shank.