1/8" Heavy Duty Air Micro Grinder (Pencil Grinder)

Model : ST-3373


ST-3373 1/8" Heavy duty Air micro grinders, Industrial quality, high speed grinding machine is applicable to engraving, grinding various kinds of surface.

ST-3373/ Heavy Duty Pneumatic Micro Grinder/ Pen Grinder

Model #



1/8" (3mm)

Free Speed

60,000 RPM

Air consumption

6 cfm (170 l/min)

Net weight

0.5 kgs(0.2 lbs)

Overall length

5-3/5 " (140 mm)

Air inlet

1/4" PT

Air hose(I.D)


Air consumption

6 cfm

Net weight

0.6 lbs (0.24 kgs)

Working air pressure

6.3 kg/cm3 (90 PSI)

Packing: 1pc/white inner box, 20pcs/Ctn/8kg/1.2 cuft

Sales points/ Focus:
Quality assurance
Good after-sales service
Favorable price
Great variety of products
OEM and ODM service provided

Available models For other Design:

ST-3373M, 3372, 3371, 3370…


1 Aluminum housing With blue rubber protect handgrip

2 Safety and Light and handy

3 Quality assurance

4 Wide range of application.

  • Wide range of application.
  •  For precision hand & finishing work
  •  Use on metal or plastics