Hydraulic Assisted Bench Grinder, 120V | Oregon Products
The Oregon 620-120 chainsaw sharpener comes with more control features, allowing you to achieve precise sharpening. It is like an upgraded version of the 410-120 and 520-120 offering more controls for more efficient and faster sharpening. It is also relatively expensive.Apr 06, 2019 · Been sharpening for 25 years using a vintage Efco and I use a 511A for rakers. Just picked up one of the first 620-120 Hydraulic unit from Oregon. It is taking some time to get used to it, EVERYTHING is different than what I had before, but I like it a lot. I am sharpening faster, but I don't like that heavy spring. I sharpen about 25 chains a .