SPEEDAIRE
SPEEDAIRE 21AA93 Pencil Grinder 0.1 hp 70 000 RPM
A compact 0.1 hp pencil grinder reaches 70 000 RPM with a 1/8 in collet and 1/4 in NPT female air inlet
- Ultra-fine detail work enabled by 70 000 RPM spindle
- Light 0.1 hp motor reduces operator fatigue during extended use
- Low 0.6 m/s² vibration improves comfort and control
- 1/4 in NPT female inlet fits standard shop air lines
- Anti-restart technology prevents accidental start-up after air loss
SPEEDAIRE 21AA93 Pencil Grinder
The SPEEDAIRE 21AA93 is a new pencil grinder built for medium-duty precision work. It suits technicians and fabricators who need fine material removal in tight spaces. The tool runs on compressed air and includes a whip hose with a 5.5 mm inner diameter. It is sold as a bare tool without a storage case.
Sustained 70 000 RPM operation
At 0.1 hp the grinder maintains its maximum 70 000 RPM under continuous load rather than only in short bursts. Rear exhaust directs airflow away from the workpiece and operator. Vibration measures 0.6 m/sq sec during extended use. Anti-restart technology prevents unintended start-up after an air-supply interruption.
1/4 in NPT female inlet setup
Installation requires connecting the 1/4 in NPT female air inlet to a regulated supply line. Both lock-off and lock-on switches are present for grip preference. No collet guard is fitted, so the 1/8 in collet sits exposed. California Proposition 65 warnings apply for cancer and reproductive-harm chemicals.
Highlights
- Ultra-fine detail work enabled by 70 000 RPM spindle
- Light 0.1 hp motor reduces operator fatigue during extended use
- Low 0.6 m/s² vibration improves comfort and control
- 1/4 in NPT female inlet fits standard shop air lines
- Anti-restart technology prevents accidental start-up after air loss
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
How loud and how much vibration does the SPEEDAIRE 21AA93 produce during extended use?
The pencil grinder has a vibration level of 0.6 m/sq sec and a rear exhaust that directs airflow away from the workpiece, helping to keep noise and vibration manageable during long sessions.
What air supply fittings and hose size are required to run the SPEEDAIRE 21AA93?
It needs a 1/4 in NPT female air inlet connection and is supplied with a whip hose of 5.5 mm inner diameter, so your compressor or airline must match that thread and hose size.
Will the SPEEDAIRE 21AA93 accept the 1/8 in collet accessories I already own?
Yes, the tool comes with a 1/8 in collet as standard, so existing 1/8 in shank burrs, mounted points and accessories will fit directly without adapters.
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