This is the Oregon Products Automatic CHAIN GRINDER, All In One, 720-120.

This is an all-in-one automatic chain grinder for professional end users seeking an efficient and profitable solution for high-volume chain sharpening up to .404" pitch.

This grinder simultaneously sharpens the cutter, sets the depth gauge and cleans the gullet.

Product Specifications:

• Grinder Voltage: 120.0
• Grinder Maximum Pitch Size: .404"
• Weight (with Packaging): 181 lbs
• Model Number: 720-120

What Is A Chain Grinder?

A chain grinder is a tool used to sharpen the cutting teeth of a chainsaw chain. It's designed to maintain the sharpness of the chain, which is crucial for efficient cutting and safe operation of the chainsaw.  

Chain grinders help extend the life of a chainsaw chain and improve cutting performance