5/16-24 NF Combined Tap & Drill
• Hi-Molybdenum tool steel ensures longer tool life
• Suited for tapping applications in construction, maintenance, repair, assembly/installation
• Self-centering split point provides excellent drilling precision and accuracy
• 3 Flats on the shank to prevent slipping
• DT-10 (NPT) does not have 3 flats on the shank
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