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Deal.ai › NovoSphere › Air Grinders, Die Grinders & Cut-Off Tools
NovoSphere
Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing
NovoSphere

Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing

Best price now

$103.11at WalmartChecked Nov 10

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Price facts

  • Last seen at $103.11 at Walmart on Nov 10.

Our take on the Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing

This is a pneumatic pencil grinder: a slim 210mm air-powered tool with a 1/8-inch (3mm) collet that spins up to 28,000 RPM at 0.6 MPa. It is built for fine work in tight spots — mold polishing, deburring, port cleanup and light die work — where a full-size die grinder will not fit. It runs on shop air through a 1/4-inch inlet, so it needs a compressor and hose, not a wall outlet. Compared with electric rotary tools it is lighter and narrower and does not heat up in the hand, but it gives up the variable speed dial and the portability.

Best forMold and die polishingDeburring small parts and tight cavitiesHobbyists and modelers with a shop compressorLight port and slot cleanup
Pros
  • Pencil-slim body reaches recessed and narrow areas
  • High 28,000 RPM speed suits fine abrasives and burrs
  • Air motor stays cool during long sessions
  • Simple metal-and-plastic build with few parts to fail
  • Standard 1/8-inch collet takes common burr and stone shanks
Cons
  • Needs a compressor and air line; not usable on its own
  • No speed control — full 28,000 RPM unless you regulate at the compressor
  • Air exhaust and motor noise are loud
  • Small collet limits it to light 3mm-shank tooling, not heavy stock removal
  • Air-hungry at high RPM, so a small compressor will struggle

Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing prices at every store

  • WalmartNew

    In stockSold by Yisheng Department StoreReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $103.11Free shippingChecked Nov 10
    Visit Walmart

About the Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing

This pneumatic air file grinder is a pencil-style tool for mould and die polishing. It runs on compressed air and uses a reciprocating, oscillating action.

The body is made of metal and plastic and is 210 mm long. It has a 1/4" air inlet and takes 1/8" (3 mm) tools in its collet.

Max speed
28000 RPM
Max air pressure
0.6 MPa
Air inlet
1/4"
Collet size
1/8" (3 mm)
Pen length
210 mm
Material
Metal and plastic
Power
Pneumatic (compressed air)

Specifications

color
OtherSource
actual_color
Set 1Source

Questions and answers

What compressor do I need to run it?
It needs a steady supply at 0.6 MPa (about 87 PSI) through a 1/4-inch inlet. A compressor with a regulator and a tank of reasonable size holds speed better than a tiny pancake unit, which will run short at 28,000 RPM.
Does it come with a speed control?
No. Speed is set by the air pressure you feed it, so use your compressor's regulator to slow it down for delicate work.
What bits fit it?
Any tool with a 1/8-inch (3mm) shank: carbide burrs, mounted stones, polishing points and small cut-off wheels. Larger 6mm-shank tooling will not fit.
Can it replace an electric rotary tool?
For fine polishing and deburring in tight spaces, yes, and it runs cooler and lighter. For jobs away from a compressor or needing variable speed, an electric rotary tool is more practical.
What is in the box?
The grinder itself with its 1/8-inch collet. Burrs, stones and the air hose are not included, so plan on buying tooling and a fitting separately.
Where is the Ultrasonic Pneumatic Air Micro Reciprocating Oscillating File Grinder Pneumatic Air Pencil Die For Mould Polishing cheapest?
At Walmart, for $103.11, as of our latest check.

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