STM Premium 15/64" x 5-3/4" OAL 118º Notched Point HSS Straight Shank Oil Hole by Sowa Tool

STM Premium 15/64" x 5-3/4" OAL 118º Notched Point HSS Straight Shank Oil Hole Drill
STM Premium 15/64" x 5-3/4" OAL 118º Notched Point HSS Straight Shank Oil Hole Drill. These drills are designed with oil holes the length of the land section of the drill to deliver a high pressure oil flow to the cutting edges. The resulting coolant flow flushes chips out of the hole to reduce heat and chip packing problems common to deep hole drilling applications. Surface speeds may be increased 30% or more over standard drill styles.