Super sharp tungsten carbide edges absorb heat and withstand punishmentBits stay sharp at speeds up to 20,000 RPMIncludes storage case and hex wrench for bearing removal1/4 shankIncludes Bevel trim bit, flush trim bit, panel pilot bit, (4) straight bits, dovetail bit, flush trim bit with bearing guide, rabbeting bit with bearing guide, roundover bit with bearing guide, 45 degree chamfer bit with bearing guide, cove bit with bearing guide, and roman ogee bit with bearing guide