STM #57 H.S.S. Vent Drill 6″, 116387
- Drill Bit Size (Wire): #57
- Drill Bit Size (Decimal Inch): 0.043
- Drill Bit Material: High Speed Steel
- Overall Length (Inch): 6
- Flute Length (Inch): 4
- To drill vent holes in tire molds and to clean the vent holes after tire production.
- Fast spiral





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