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SPEEDAIRE 21AA91 angle grinder silver metal body side handle safety lever 3/8 NPT inlet

SPEEDAIRE

SPEEDAIRE 21AA91 Type 27 Angle Grinder 3/8 NPT Medium Duty

SKU CH-2GX9-WRH90

A medium-duty angle grinder with a 7-inch wheel and a safety throttle lever for extended reach

  • Medium-duty grinding power from a 1 hp motor
  • Type 27 wheel compatibility for versatile cutting tasks
  • Safety throttle lever prevents accidental start-up
  • 3/8 in NPT female inlet fits standard air lines
  • Variable speed control between 8,000 and 9,500 RPM

SPEEDAIRE 21AA91 Type 27 Angle Grinder

The SPEEDAIRE 21AA91 is a pneumatic angle grinder built for medium duty applications. It features a Type 27 wheel configuration with a 7 inch wheel diameter and a 1 hp motor. The tool operates with a 3/8 inch NPT female air inlet and offers variable speed control.

Suited for grinding and cutting tasks needing

This grinder suits operators who need extended reach for surface preparation or weld removal. The safety throttle lever provides controlled operation during use. Buyers needing a compact tool for tight spaces or a different wheel type should look at other options.

Sustained operation at 8,000 to 9,500 RPM

Under continuous load the motor maintains speeds between 8,000 and 9,500 RPM with a maximum of 8,500 RPM. The 5/8 inch -11 spindle thread secures the wheel during prolonged use. Medium duty construction supports regular workshop demands without heavy industrial framing.

Highlights

  • Medium-duty grinding power from a 1 hp motor
  • Type 27 wheel compatibility for versatile cutting tasks
  • Safety throttle lever prevents accidental start-up
  • 3/8 in NPT female inlet fits standard air lines
  • Variable speed control between 8,000 and 9,500 RPM

Specifications

BrandSPEEDAIRE

Questions about this item

What air supply and hose fitting does this angle grinder require to operate?

The grinder needs a compressed-air source and a 3/8 in NPT female air inlet connection to attach the supply hose.

Will the 7 in Type 27 wheel and 5/8-11 spindle work with my existing grinding discs?

Yes, the 7 in wheel diameter and 5/8-11 spindle thread match standard Type 27 discs, so your current wheels will fit.

How can I confirm the tool is running at the correct speed after hooking it up?

With the safety throttle lever engaged, the grinder should operate between 8,000 and 9,500 RPM, reaching a maximum of 8,500 RPM under load.

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