SGS® 51351 Double Margin Screw Machine Length High Performance Drill With Coolant Holes, Q, 3-1/2 in L, TiN Coated

The SGS Hi-Per Carb drill is designed to provide absolute accuracy and stability in the most challenging applications. The double margin design is absolutely the best choice when encountering tolerance problems due to precast holes, cross holes or interruptions. In addition the second margin offers reamer quality finishes, while providing an access channel for coolant to flow.