Turning Archive 2004
>I taught a sharpening class at the local Woodcraft store last week. We used 3 different slow speed grinders. The $95 Woodcraft import, Delta Shopmaster GR450 (variable speed), and the Delta Industrial 23-725. The ginders were running for about 4 hours straight.
The 23-725 was barely warm, while the other two were hot enough to burn your hand. They still worked fine, but it just goes to show you the difference between a "home" model and industrial model in severe use.
Personally, I have Woodcraft model and the GR450 but they are never on for more than a few minutes at a time so I never experienced the heat. The GR450 is my traveling grinder because its the lightest 8" model I could find.