has a little screw on the opposite side of the trigger, what is that for?

It's an adjustable valve,you can adjust the speed of the grinding tool by turning this screw.

Can i use it with campbell hausfeld fp209501 110 max psi air compressor? as other belt sanders rated for more powerful compressors.

Yes, it can work with the tool which you mention. But please notice that the standard working pressure of this product is 90PSI, too high or low air pressure will make a poor performance!

Can this sander fit in a 3/4" square opening? To sand off aluminum burrs from the inside of a 1" square tube.

Yes it will do that, but a bit tight as the overall head width is just under 1/2".

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Pneumatic Tool Air Belt Sander,1/4" Air Inlet,Air Belt Sander (3/8" x 13") with 12pc Belts (#40，#60，80#，120#),3/8" Air Belt Grinder For Aluminium, Iron, Steel And Etc. Metal Polishing

Pneumatic Tool Air Belt Sander,1/4" Air Inlet,Air Belt Sander (3/8" x 13") with 12pc Belts (#40，#60，80#，120#),3/8" Air Belt Grinder For Aluminium, Iron, Steel And Etc. Metal Polishing

Product ID: 409215354

Details

AC Adapter Current
4.5 Amps
Brand
Minimprover
Grit Number
80
Grit Type
Medium
Item Weight
0.99 Kilograms
Maximum Rotational Speed
14000 RPM

💪0.9 KG lightweight & ergonomic

⚙️14000 RPM high-speed power

🛠️12 versatile sanding belts included

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Rp3987515

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your craft with speed, precision, and style!

COMPLETE 12 BELT KIT - From coarse to fine grit, ready for every polishing challenge
MULTI MATERIAL MASTERY - Perfect for aluminum, steel, plastics, wood, and more—your all-in-one finishing tool
ERGONOMIC LIGHTWEIGHT - Comfort grip with non-slip handle for fatigue-free extended use
PRECISION AT 14 000 RPM - Turbocharged speed for flawless metal and wood finishing
RUST CORROSION RESISTANT - Durable stainless steel body built to last in tough environments

The Pneumatic Tool Air Belt Sander delivers a powerful 14,000 RPM motor combined with a lightweight 0.9 KG stainless steel design, ensuring durability and comfort. Equipped with 12 sanding belts ranging from #40 to #120 grit, it handles everything from heavy burr removal to fine polishing across metals, plastics, wood, and more. Its ergonomic, non-slip handle and low vibration make it ideal for professional-grade finishing and extended use.

Specifications

AC Adapter Current	4.5 Amps
ASIN	B08C6Z6LS3
Best Sellers Rank	#270,633 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #51 in Power Belt Sanders
Brand	Minimprover
Country of Origin	USA
Grit Number	80
Grit Type	Medium
Item Weight	990 g
Item model number	4a0eeab9-1477-4b8a-8f7d-036712c543d3
Manufacturer	Minimprover
Maximum Rotational Speed	14000 RPM
Package Dimensions	34.3 x 10.4 x 7.4 cm; 990 g
Power Source	Corded Electric
UPC	779605311391

Reviews

A**Z

An excellent product for manual work

2.08.2025

M**T

tanks

29.02.2024

I**D

Real great tool

17.03.2024

B**L

looks well made, but seriously lacks power

1.04.2023

C**O

no fault of the tool but i wish i had bought a wider belt tool

4.09.2025

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