Product Description
Milwaukee M9-1.25 mm Straight Flute Plug Tap
Model Number: 49-57-5147
The Milwaukee 49-57-5147 is an M9-1.25 mm Straight Flute Plug Tap, precision machined for creating or repairing clean, accurate internal threads. A tap cuts female threads into a drilled hole, and this plug tap is the most common general-purpose style, with a short tapered chamfer of a few threads at the tip that starts the tap square in the hole before transitioning to full-form threads, which makes it well suited to through-hole threading. The M9-1.25 mm designation identifies a 9 mm nominal diameter with a 1.25 mm thread pitch. M9 is an uncommon size that sits between the far more common M8 and M10, which is exactly why keeping the correct tap on hand matters: when an M9 thread comes up in a specific automotive or equipment application, a standard M8 or M10 tap simply will not do the job. The straight flute geometry gives the tap the versatility to handle general threading across common metals.
The tap is built for durability and lasting identification. High carbon steel construction holds a sharp cutting edge through the common metal applications it is designed for, and a protective black oxide coating resists corrosion while helping to reduce friction as the tap cuts. Milwaukee marks these taps with long-lasting laser-etched sizing rather than stamped markings, so the size stays clearly legible over the life of the tool. The square shank is compatible with all standard tap handles and tap wrenches, so it drops right into the threading tools you already run.
This plug tap is designed for cutting threads in the most common metal applications, including brass, aluminum, mild steel, and more, which makes it a go-to for mechanics, machinists, fabricators, and maintenance crews who encounter metric M9 hardware. It handles both tapping fresh holes and chasing or repairing an existing damaged M9 thread. For the cleanest finish, easiest cutting, and longest tap life, use the tap with cutting fluid to keep heat and friction down as it works.
Features
- Genuine Milwaukee M9-1.25 mm Straight Flute Plug Tap
- Cuts clean, accurate internal threads in the M9-1.25 mm metric thread
- Plug tap style with a starting chamfer for square, easy starts
- Designed for through-hole threading
- M9 is an uncommon specialty size between M8 and M10
- High carbon steel construction for durability
- Protective black oxide coating for corrosion resistance
- Long-lasting laser-etched sizing for the clearest identification
- Square shank fits all standard tap handles and tap wrenches
- Straight flute design for versatile general-purpose threading
- Threads brass, aluminum, mild steel, and other common metals
- Best used with cutting fluid for a clean finish and longer tap life
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 49-57-5147
- Type: Straight Flute Plug Tap
- Thread Size: M9
- Thread Pitch: 1.25 mm
- Measurement System: Metric
- Tap Style: Plug, for through-hole threading
- Flutes: Straight
- Material: High carbon steel
- Finish: Black oxide
- Shank: Square, fits standard tap handles and wrenches
- Materials Threaded: Brass, aluminum, mild steel, and other common metals
- Part Type: Genuine Milwaukee Accessory
Includes
- (1) Milwaukee 49-57-5147 M9-1.25 mm Straight Flute Plug Tap
