High Speed Steel Drill Bits
High Speed Steel Drill Bits
Aircraft Extension HSS Drill Bits
Aircraft Extension HSS Drill Bits
Aircraft Extension drill bits are similar in length to extra length bits, emphasizing reach over cutting depth, and have a shorter flute length (about the same as a jobber drill). This makes the bit much stronger and less susceptible to bending and breaking.
Screw Machine (Stub) Length HSS Drill Bits
Screw Machine (Stub) Length HSS Drill Bits
These Screw Machine, or Stub, Length drill bits are designed for applications where increased hole accuracy and extended tool life is required. This is achieved by the shorter length as compared to other drill bits which provides maximum rigidity.