The U Drill Inserts are offered by us that are one on the inner cutting edge and one on the outer cutting edge. Bits can be used in CNC machines with coolant-through technology; holes in the bit allow coolant to be channeled through the tool for more efficient chip evacuation. When the cutting edges of the inserts dull just replace the carbide inserts instead of the entire bit. Common usages include gating, compressing, equalizing and for reverb effects that are specific to that channel or group. Inserts can be used as an alternate way to route signals such as for multitrack recording output or line level direct input. The offered U Drill Inserts are offered by us for industrial uses.