#5 Step Drill Bit, 1/4" - 1-3/8" by 1/8"

Milwaukee 48-89-9205 — Step Drill Bit (#5)

The Milwaukee 48-89-9205 is a #5 step drill bit, part of Milwaukee’s JAM-FREE Performance step bit line, designed for drilling multiple hole sizes in sheet metal using a single bit.

What it does

A step bit like this cuts a series of stepped diameters so you can drill and enlarge holes without switching tools.

The #5 size is larger than the #4 (9204) you listed and is typically used for bigger panel and conduit work.

Typical range:

• 1/4" up to 1-3/8" (by 1/16" steps)
  (Exact step count and max size can vary slightly by revision, but #5 is the large-format step bit in this series.)

Key Features

• Step drilling in one bit – replaces many standard drill sizes
• JAM-FREE flute design – reduces grabbing and improves chip evacuation
• Rapid Strike / split tip design – helps start holes without walking
• Black oxide coating – reduces heat and wear in metal drilling
• Laser-etched size marks – easy to stop at exact diameter
• Works best in sheet metal, aluminum, plastic, and thin steel

Best Uses

• Large electrical panel knockouts
• HVAC duct and sheet metal fabrication
• Enclosure and chassis work
• Enlarging existing holes cleanly
• General maintenance and install work where multiple sizes are needed

Important limitation

Like all step bits:

• Best for thin material
• Not intended for thick plate steel or deep structural drilling
• Performs best in a cordless drill at moderate speed with light pressure