STM #55 6″ O.A.L. Cobalt Aircraft Extension Drill, 115605
- Drill Bit Size (Wire): #55
- Drill Bit Size (Decimal Inch): 0.052
- Drill Point Angle (Degrees): 118
- Drill Bit Material: Cobalt
- Drill Bit Finish/Coating: Gold
- Overall Length (Inch): 6
Technical specs
- Flute Length (Inch): 7/8″
- Spiral Type: Regular Spiral
- Flute Type: Spiral Flute
- Cutting Direction: Right Hand
- Standard: Split Point
- Shank Type: Straight
- Through Coolant: No





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