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Plastic Body PBT (Polybutylene Terephthalate)
Material: Virgin PTFE with Fillers
Reduction Stages: Double
in one tooth increments
49640 Type 170-AG Magnum Super Premium 135Â degree Split Point NAS 907B Jobber Length Drill Bit (5 pack) #57 Plastic Body PBT (Polybutylene Terephthalate)135 split point provides fast penetration and accurate starting without a center punch. Withstands substantially higher drilling temperatures while maintaining sharpness. Click Here for product catalog Proudly Manufactured in the U. S. A
