MC1632-High-Speed-Steel-Step-Drill-Conduit-16-20-25-32mm-G-J-Hall-MC1632-p-The-Halls-High-Speed-Steel-Step-Drill-with-a-special-application-for-conduit-entry-These-step-drills-cut-a-parallel-hole-for-size-range-stated-p-p-Range-Starting-Diameter-11mm-br-Size-Range-16-20-25-and-32mm-br-Material-Thickness-3-5mm-br-Shank-to-fit-chuck-size-13mm-p-p-When-drilling-metals-always-use-a-coolant-p-G-J-Hall-MC1632-High-Speed-Steel-Step-Drill-Conduit-16-20-25-32mm