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Valianto Grinder Pneumatic Polishing Engraver Review

3

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Average

Revainrating 3.5 out of 5  
Rating 
3.3
🔧 Industrial Power Tools, 🛠️ Industrial Power & Hand Tools

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Description of Valianto Grinder Pneumatic Polishing Engraver

【Specification】-----1/8" Collet-----1/4" Air Inlet-----2 CFM Avg. Air Consumption. 【Working】-----58000 RPM Free Speed-----90PSI Air Pressure-----High-speed pencil type grinder, can adapt to high speed precision machining Sophisticated interior design, easy use and durable. 【Speed Control】-----Pencil Type Micro Air Die Grinder features a variable speed throttle control. 【Hose Protector】-----Convenient hose with hose protector. Rear exhaust to prevent the chip flying anti-chip scattering and reduce noise. 【Occasion】-----All kinds of metal precision grinding,Cutting plastic, stone, wood, etc. grinding, polishing, Clean jewelry, dies, rotors, backing plates, brake pads, cylinder heads, mounts and many other applications; suitable for hobby use.

Reviews

Global ratings 3
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Type of review

Revainrating 4 out of 5

Acceptable: Straight grinder

Tool oiler leaking. The bottle that came with it didn't have a cap to cover the tip after you cut it open to use. The housing is a bit useless if you don't want to unscrew the oiler from the hose. I have no experience with this type of coffee grinder, so I don't like it (yet?). Used it to split a rusty nut and clean rough spots on 3D printed parts.

Pros
  • Nice to use
Cons
  • old

Revainrating 4 out of 5

Satisfied. in grinders

The grinder itself is great, it fits perfectly on my 5/8" boring bar holder on the QCTP and at 25psi has enough power to grind the hardened jaws of my lathe chuck. However, the bits are marked with a shank size of 3 mm or 1/8 inch. They're not the same, and 1/8 can be a serious boost. I put a dremel collet in it and although they take different collets it worked fine. The oiler won't seal the grinder hose and the included grindstones don't sit well on the shafts. All in all a great tool.

Pros
  • Durable finish
Cons
  • Damaged

Revainrating 2 out of 5

No instructions! on power tools

I haven't used it yet because the instructions are so bad I can't figure out how to assemble it. Came with an empty bottle for oil I guess hmm where do I put the oil? How do I put sharpening points in a pencil grip? Why do you need another nozzle? I can't even find a video with instructions on YouTube. Disappointing! Well understood, but the problem is, use two wrenches, turn the collet and the hole in the cover in opposite directions. The rear triangle holder slipped off the tube, it didn't…

Pros
  • Freehand
Cons
  • Very expensive